OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm
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Product Highlights
- OEM and ODM Services: Full customization including reverse engineering, custom design, and private labeling.
- Diverse Material Options: Available in Carbon Steel, Cast Iron, Forged Steel, Ductile Iron, and Billet Aluminum.
- High Precision Tolerance: Machining tolerance controlled within +/-0.10mm for optimal engine performance.
- Multiple Rocker Arm Types: Offering Roller, Flat/Sliding Tappet, Adjustable, and Complete Assembly options.
- Flexible MOQ Policy: Standard MOQ 200 pieces, Custom MOQ 500 pieces, small orders accepted.
- Comprehensive Certifications: Certified with ISO9001:2015, ISO/TS16949, CCC, and CE standards.
- Fast Response Support: Customer inquiries are replied to within 24 hours with technical assistance.
- Global Shipping Options: Express (3-7 days), Air (7-10 days), and Sea freight available from Qingdao Port.
Product Attributes
- Customization
- Available
- After-sales Service
- Contact Us
- Warranty
- Contact Us
- Model NO.
- SA-RA
- Type
- Motorcycle Engine Assembly
- Start
- Electric/Kick
- Cylinder NO.
- 4 Cylinder
- Stroke
- Two Stroke
- Cold Style
- Air-Cooled
- Energy Transformation
- Hydraulic Machine
- Certification
- CCC, CE, ISO9001：2000
- Thermal Machine
- External Combustion Type
- Four Stroke Principle
- Compression Stroke
- Main Market
- North America
- Name
- Rocker Arm
- Casting Method
- Sand Casting
- Casting Form Material
- Metal
- Casting Metal
- Cast Steel
- Casting Form Usage Count
- Permanent
- Surface Treatment
- Galvanized
- Surface Roughness
- Ra3.2
- Coating
- Zinc Oxide
- Machining Tolerance
- +/-0.10mm
- Standard
- AISI
- Technics
- Casting
- Quality Certification
- ISO9001:2015
- OEM and ODM
- 100%
- Welcome
- Custom Design
- Shipping Port
- Qingdao Port
- Transport Package
- Plywood Box
- Specification
- 1/4-5/16, 5/16-3/8, 3/8-1/2, 1/2-5/8
- Trademark
- ShengAo
- Origin
- Shangdong, China
- HS Code
- 87089910
- Production Capacity
- 500ton/Month
- Package Size
- 50.00cm * 50.00cm * 60.00cm
- Package Gross Weight
- 150.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm
-
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm -
OEM Lost Wax Stainless Steel Casting Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm
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Product Description
OEM Casting Part Motorcycle Rocker Arm Camshaft Top Bottom Rocker Arm
General Information
1. Compatible with motorcycle and ATV
2. Be used for motorcycle/ATV refit or after-sale maintain.
3.Many models atv clutch kits for option
4.Certificate: ISO/IS16949
5.Used for refit or after-sale maintain.
6. Steel plate material in good quality
7.High quality fibre disc
8. Product name : Motorcycle Rocker Arm/ Valve Rocker Arm/ Bearing Rocker Arm
2.OEM quality standard ,Guarantee the quality
3.Long working life time
4.Positive customer feedback from overseas and domestic markets
5.Able to produce according to specifications with technical drawings
6.Sample Purpose order accepted
7.Packing according to specifications required
8.Flexible and conveninent logistic services
A Camshaft Rocker Arm is a critical valve train component in many motorcycle engines (especially OHV - Overhead Valve and some OHC - Overhead Cam designs). It acts as a lever or follower that converts the rotational motion of the camshaft lobe into the vertical (reciprocating) motion required to open and close the engine's intake and exhaust valves. Proper rocker arm function is essential for engine timing, power, and efficiency.
2. What types of rocker arms do you manufacture?
We produce rocker arms for a wide range of motorcycle engines:
Roller Rocker Arms: Feature a needle bearing roller at the cam contact point, reducing friction and wear. Common in high-performance and modern engines.
Flat/Sliding Tappet Rocker Arms: Have a hardened pad that slides directly on the cam lobe. More traditional design.
Rocker Arms with Adjusters: Include a screw and locknut for manual valve lash (clearance) adjustment.
Complete Rocker Arm Assemblies: Including shafts, springs, and pins.
OEM Replacement & Performance Upgrades: Direct-fit replacements and enhanced versions (e.g., 1.6:1 ratio for increased valve lift).
3. What materials are your rocker arms made from?
Material selection is key for durability and performance:
Body/Base Material: Forged or Cast Steel (AISI 8620, 4140) for high strength and impact resistance. Ductile Iron is also used for some OEM applications.
Contact Surfaces: The cam lobe contact point (roller or pad) and the valve stem tip contact point are often hardened or fitted with special wear-resistant inserts.
Rocker Shaft: Hardened Chrome Molybdenum Steel.
Roller: Case-Hardened Steel with precision needle bearings.
Finish: May be heat-treated, shot peened for fatigue resistance, and/or coated (e.g., DLC - Diamond-Like Carbon for high-performance).
4. How do I identify the correct rocker arm for my motorcycle?
Exact fitment is crucial. Please provide the most accurate information:
Motorcycle Make, Model, Engine CC, and Year
Engine Type/Code
Clear photos of the old rocker arm from multiple angles (top, bottom, side, ends).
Key Measurements: Distance between shaft hole centers, roller/contact pad width, overall dimensions.
OEM Part Number (stamped on the part or from manual). This is the most reliable method.
5. Are your rocker arms direct OEM replacements?
Yes. Our standard replacement rocker arms are precision-engineered to match the original OEM specifications for dimensions, geometry, material, and heat treatment. They are designed as direct bolt-on replacements that integrate seamlessly with your existing camshaft, valves, and adjusters.
6. What are "ratio" rocker arms and their benefit?
The rocker arm ratio (e.g., 1.5:1) is the mechanical leverage it provides.
Stock Ratio: Matches OEM specification.
High-Ratio Performance Rockers (e.g., 1.6:1): Increase the valve lift for a given camshaft lobe. This can improve airflow and engine power without changing the camshaft itself. Must be compatible with piston-to-valve clearance.
7. What are common signs of a failing rocker arm?
Watch for these symptoms:
Loud Ticking/Tapping Noise from the valve cover (excessive valve lash or worn contact surfaces).
Loss of Engine Power or misfires (valves not opening fully due to wear).
Metal Debris in engine oil (from worn surfaces).
Visible Wear: Grooving, pitting, or excessive play on the contact pad, roller, or shaft bore.
8. Do you offer performance or heavy-duty rocker arms?
Yes. For racing, high-mileage, or stressed engines, we offer:
Billet Aluminum Rockers: Extremely lightweight and strong.
Chromoly Steel Rockers: For ultimate strength.
Roller Rocker Upgrades: Converting a sliding system to roller for less friction and heat.
Hardened Tips & Rollers: For extended lifespan under high-RPM use.
9. Can you customize rocker arms (OEM/ODM)?
Absolutely. As a manufacturer, we provide full OEM/ODM services:
Reverse Engineering: From your sample or broken part.
Custom Design & Prototyping: For custom engines or modifications.
Material and Heat Treatment Specification.
Private Labeling & Packaging.
10. What is your MOQ (Minimum Order Quantity)?
Standard Replacement Parts: MOQ 200 pieces (can be mix-and-match across compatible models).
Custom/Performance/OEM Projects: MOQ 500 pieces.
Samples: Available for fitment and quality testing.
11. What is the production lead time?
Samples: 15-20 working days.
Standard Parts: 25-35 working days.
Custom/OEM Production: 40-50 working days after final sample/drawing approval.
12. How do I request a quotation or technical support?
For the fastest service, please provide:
OEM part number and/or motorcycle details (make, model, year, engine).
Photos/drawings of the required part.
Your target quantity.
Any special requirements (performance, material).
If Anyting Not Clear, Welcome to Contact Us!
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Type
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motorcycle rocker arm
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Material
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Carbon steel, Cast Iron, OEM
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MOQ
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300pcs , small order also could been accepted
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Delivery time
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15 - 30 work days after receipt the deposit
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Packing
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Each pack in plastic bag and foam
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remarks
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1. All parts are under rigid quality control before shipment 2. High quality and reasonable price , we quote the price according to the quality and quantity . 3. We could offer your goods according to your samples and specification . |
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1. Compatible with motorcycle and ATV
2. Be used for motorcycle/ATV refit or after-sale maintain.
3.Many models atv clutch kits for option
4.Certificate: ISO/IS16949
5.Used for refit or after-sale maintain.
6. Steel plate material in good quality
7.High quality fibre disc
8. Product name : Motorcycle Rocker Arm/ Valve Rocker Arm/ Bearing Rocker Arm
Advantages of Our Rocker Arm
1.Several Models For Choose2.OEM quality standard ,Guarantee the quality
3.Long working life time
4.Positive customer feedback from overseas and domestic markets
5.Able to produce according to specifications with technical drawings
6.Sample Purpose order accepted
7.Packing according to specifications required
8.Flexible and conveninent logistic services
Our Service
1. OEM Manufacturing welcome: Product, Package...
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every two days, until you get the products. When you got the goods, test
them, and give me a feedback. If you have any questions about the problem, contact with us, we will offer the solve way for you.
2. Sample order
3. We will reply you for your inquiry in 24 hours.
4. After sending, we will track the products for you once every two days, until you get the products. When you got the goods, test
them, and give me a feedback. If you have any questions about the problem, contact with us, we will offer the solve way for you.
1. By Express: Usually 3-7 Days by DHL,FedEx,TNT, UPS, EMS
2. By Air line: Usualy 7-10 days
3. By Sea-Container: Usually 20 days to asia, 30 days to Middle East and Europe, 40 days to Africa
A Camshaft Rocker Arm is a critical valve train component in many motorcycle engines (especially OHV - Overhead Valve and some OHC - Overhead Cam designs). It acts as a lever or follower that converts the rotational motion of the camshaft lobe into the vertical (reciprocating) motion required to open and close the engine's intake and exhaust valves. Proper rocker arm function is essential for engine timing, power, and efficiency.
2. What types of rocker arms do you manufacture?
We produce rocker arms for a wide range of motorcycle engines:
Roller Rocker Arms: Feature a needle bearing roller at the cam contact point, reducing friction and wear. Common in high-performance and modern engines.
Flat/Sliding Tappet Rocker Arms: Have a hardened pad that slides directly on the cam lobe. More traditional design.
Rocker Arms with Adjusters: Include a screw and locknut for manual valve lash (clearance) adjustment.
Complete Rocker Arm Assemblies: Including shafts, springs, and pins.
OEM Replacement & Performance Upgrades: Direct-fit replacements and enhanced versions (e.g., 1.6:1 ratio for increased valve lift).
3. What materials are your rocker arms made from?
Material selection is key for durability and performance:
Body/Base Material: Forged or Cast Steel (AISI 8620, 4140) for high strength and impact resistance. Ductile Iron is also used for some OEM applications.
Contact Surfaces: The cam lobe contact point (roller or pad) and the valve stem tip contact point are often hardened or fitted with special wear-resistant inserts.
Rocker Shaft: Hardened Chrome Molybdenum Steel.
Roller: Case-Hardened Steel with precision needle bearings.
Finish: May be heat-treated, shot peened for fatigue resistance, and/or coated (e.g., DLC - Diamond-Like Carbon for high-performance).
4. How do I identify the correct rocker arm for my motorcycle?
Exact fitment is crucial. Please provide the most accurate information:
Motorcycle Make, Model, Engine CC, and Year
Engine Type/Code
Clear photos of the old rocker arm from multiple angles (top, bottom, side, ends).
Key Measurements: Distance between shaft hole centers, roller/contact pad width, overall dimensions.
OEM Part Number (stamped on the part or from manual). This is the most reliable method.
5. Are your rocker arms direct OEM replacements?
Yes. Our standard replacement rocker arms are precision-engineered to match the original OEM specifications for dimensions, geometry, material, and heat treatment. They are designed as direct bolt-on replacements that integrate seamlessly with your existing camshaft, valves, and adjusters.
6. What are "ratio" rocker arms and their benefit?
The rocker arm ratio (e.g., 1.5:1) is the mechanical leverage it provides.
Stock Ratio: Matches OEM specification.
High-Ratio Performance Rockers (e.g., 1.6:1): Increase the valve lift for a given camshaft lobe. This can improve airflow and engine power without changing the camshaft itself. Must be compatible with piston-to-valve clearance.
7. What are common signs of a failing rocker arm?
Watch for these symptoms:
Loud Ticking/Tapping Noise from the valve cover (excessive valve lash or worn contact surfaces).
Loss of Engine Power or misfires (valves not opening fully due to wear).
Metal Debris in engine oil (from worn surfaces).
Visible Wear: Grooving, pitting, or excessive play on the contact pad, roller, or shaft bore.
8. Do you offer performance or heavy-duty rocker arms?
Yes. For racing, high-mileage, or stressed engines, we offer:
Billet Aluminum Rockers: Extremely lightweight and strong.
Chromoly Steel Rockers: For ultimate strength.
Roller Rocker Upgrades: Converting a sliding system to roller for less friction and heat.
Hardened Tips & Rollers: For extended lifespan under high-RPM use.
9. Can you customize rocker arms (OEM/ODM)?
Absolutely. As a manufacturer, we provide full OEM/ODM services:
Reverse Engineering: From your sample or broken part.
Custom Design & Prototyping: For custom engines or modifications.
Material and Heat Treatment Specification.
Private Labeling & Packaging.
10. What is your MOQ (Minimum Order Quantity)?
Standard Replacement Parts: MOQ 200 pieces (can be mix-and-match across compatible models).
Custom/Performance/OEM Projects: MOQ 500 pieces.
Samples: Available for fitment and quality testing.
11. What is the production lead time?
Samples: 15-20 working days.
Standard Parts: 25-35 working days.
Custom/OEM Production: 40-50 working days after final sample/drawing approval.
12. How do I request a quotation or technical support?
For the fastest service, please provide:
OEM part number and/or motorcycle details (make, model, year, engine).
Photos/drawings of the required part.
Your target quantity.
Any special requirements (performance, material).
If Anyting Not Clear, Welcome to Contact Us!
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR2551414". Items marked "
" are certified.
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Company Profile
WeiFang Shengao Machinery Co., Ltd is located in WeiFang the famous city in China and the world center of kites. It is 140 kilometers far away from Qingdao port, the transportation is very convenient. Our company use the location advantages of ShanDong province to integrate resources so that we can processing according to the drawings of customers.
We mainly undertake the forging parts, stamping parts, casting parts, machining parts and other machinery spare parts. The main products we could do are gears and gear boxes, manhole covers, bucket teeth, flywheels, stove fireplace, cookwares, pump and valve spares, engine spares...Our products have been exported to the United States, Denmark, Italy, Russia, Australia etc for more than 15 years.
The material we can adopt is included various kinds of cast steel and cast iron, heat-resistant steel, carbon steel, alloy steel, alloys and other customized materials. We have strong processing capacity, we own MAZAK, HSS, YOUJI and other brands machining centers from the abroad, we also have lathes, NC lathes, NC milling, boring, grinding, drilling, broaching and wire electrode cutting machines, which are used to ensure we can fulfill different machining requirements from our customers.
We can produce according to the drawings of customers. Our Import and Export Department have many years experiences of foreign trading and our products are mainly exported to the United States, Denmark, Italy, Russia, Australia, Iran, Pakistan, South Africa etc.
Over the years, company adhere to the guideline for management of "Quality first, Reputation first, Delivery just-in-time, Price best". We will try our best to improve the technical level and perfect the enterprise management. Our company will depend on superior quality of products and sincere service to cooperate with domestic and overseas, new and old customers and establish eternal friendship to create a bright future. Sincerely welcome your drawings and samples or any other kinds of designs, our team will try the best to serve you and satisfy all the requirements you have.
Why choose us to produce your parts?
1) Experienced staffs will reply you in 24 hours.
2) Welcome OEM, ODM and Smaller quantity.
3) Exclusive and unique solution can be provided to you.
4) Special discount and protection of sales area.
5) Random quality inspection during production.
6) Delivery on time.
7) At a competitive price from our own factory.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- Room1002-1005, No. 10 Building, Yuhe Road, Shengli Street, Kuiwen District, Weifang, Shandong, China
-
Plant Area
- 41 square meters
-
Number of Employees
- 9
-
Registered Capital
- 1,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
- Average Lead Time
- Peak Season Lead Time, one month, Off Season Lead Time, within 15 workdays
-
Nearest Port
- Qingdao Port
-
Minimum Order Quantity
- 10
-
Supply Chain Partners
- 10
Our Production Capability & Technical Expertise
-
Main Products
- Mechanical Parts
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2022-08-15
- Export Year
- 2010-04-06
-
Main Markets
- North America, Europe, Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- What is a Motorcycle Camshaft Rocker Arm?
- A critical valve train component that converts the rotational motion of the camshaft lobe into vertical motion to open and close engine valves, essential for timing and efficiency.
- What types of rocker arms do you manufacture?
- We produce Roller Rocker Arms, Flat/Sliding Tappet Rocker Arms, Rocker Arms with Adjusters, Complete Assemblies, and OEM Replacement/Performance Upgrades.
- What materials are your rocker arms made from?
- Body/Base materials include Forged or Cast Steel (AISI 8620, 4140) and Ductile Iron. Contact surfaces are hardened, and shafts are made of Hardened Chrome Molybdenum Steel.
- How do I identify the correct rocker arm for my motorcycle?
- Provide the Make, Model, Engine CC, Year, Engine Type/Code, clear photos, key measurements, and the OEM Part Number for the most accurate fitment.
- Are your rocker arms direct OEM replacements?
- Yes, our standard replacement rocker arms are precision-engineered to match original OEM specifications for dimensions, geometry, material, and heat treatment.
- What are ratio rocker arms and their benefit?
- Ratio rocker arms provide mechanical leverage. High-ratio versions (e.g., 1.6:1) increase valve lift to improve airflow and power without changing the camshaft.
- What are common signs of a failing rocker arm?
- Symptoms include loud ticking noises, loss of engine power, metal debris in oil, and visible wear like grooving or pitting on contact surfaces.
- Do you offer performance or heavy-duty rocker arms?
- Yes, we offer Billet Aluminum, Chromoly Steel, Roller Upgrades, and Hardened Tips/Rollers for racing and high-mileage applications.
- Can you customize rocker arms (OEM/ODM)?
- Absolutely. We provide reverse engineering, custom design, material specification, and private labeling services.
- What is your MOQ (Minimum Order Quantity)?
- Standard parts require 200 pieces (mix-and-match allowed), while Custom/Performance/OEM projects require 500 pieces.
- What is the production lead time?
- Samples take 15-20 days, Standard Parts 25-35 days, and Custom/OEM Production 40-50 days after sample/drawing approval.
- How do I request a quotation or technical support?
- Provide the OEM part number, motorcycle details, photos/drawings, target quantity, and any special requirements for the fastest service.
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