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This ARP performance fastener, stud, bolt, tool, or assembly is the Flywheel Bolt Kit for Ford Cosworth YB. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.
Key Features
- Thread, length, material, strength series, and included quantity are exact-part specific
- Engine, vehicle, component, and installation requirements must match the current ARP application
- These bolts deliver 180,000 PSI tensile strength from heat-treated 8740 chromoly steel construction for dependable power transfer in street and track use.
- The kit includes six M12x1.25 bolts at 2.220 inches overall length with matching hardened washers.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| Universal or specification-matched application. Verify every dimension, interface, load or operating requirement, and listing note. | |||
Specifications
| Brand | ARP |
|---|---|
| Manufacturer Part Number | 251-2803 |
| Product Type | Hardware Kits - Other |
| Condition | New |
| Configuration | Flywheel Bolt Kit for Ford Cosworth YB |
| 180,000 PSI Tensile Strength | Handles extreme torque loads in high-performance Cosworth YB applications without failure |
| 8740 Chromoly Steel | Aerospace-grade alloy forged and heat-treated before thread rolling for maximum fatigue resistance |
| Black Oxide Finish | Provides corrosion resistance and reduces friction during installation |
| 12-Point Flat Head Design | Ensures positive engagement and easier access in tight engine bays |
| Larger Shank Diameter | Improves flywheel registration and strength over stock hardware |
| Q | Does this kit fit all Ford Cosworth YB engines? A: Yes it fits 1985-1996 Sierra Cosworth, Sapphire Cosworth, and Escort RS Cosworth with 2.0L or 2.1L YB turbo engines including swaps |
| Method | UPS Ground or USPS Priority |
| Availability | In stock - ships same or next business day |
| Packaging | Compact protective box 4 x 3 x 1 inches |
| Weight | 0.31 lbs |
| PSI Tensile Strength | Handles extreme torque loads in high-performance Cosworth YB applications without failure 8740 |
What's Included
One new ARP hardware kits - other in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.
About ARP
Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.
Important Disclosures
- California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.
Related Parts
- Shop all ARP products
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Frequently Asked Questions
How do I confirm the Flywheel Bolt Kit for Ford Cosworth YB fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.
Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP's current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.
What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.
Installation Instructions
- Confirm ARP part number 251-2803, the complete application, and every required supporting component before beginning work.
- Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
- Follow ARP's current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
- Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.
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