Peterson
Peterson Fluid Rear Split Seal- BBC Crankshaft PTRSM86665
Peterson Fluid Rear Split Seal- BBC Crankshaft PTRSM86665
Part number: 8ODY3
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- Tracking emailed when it ships
- Free fitment check before you order
Fluid Rear Split Seal- BBC Crankshaft PTRSM86665 by Peterson for the rear position. A new or reground crank is usually part of a full engine rebuild or stroker build.
Key features
- Rear Main Seal - 2-Piece - PTFE - Big Block Chevy - Each
- Rear position
Specifications
- Brand: Peterson
- Part type: Crankshaft
- Position: Rear
Fitment
This listing does not name specific vehicles. Match the part number and the specifications with the part you are replacing.
What it does
The crankshaft turns the up-and-down motion of the pistons into rotation. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.
Installation & tips
- Have the rotating assembly balanced if you change pistons, rods or the crank.
- Main and rod bearings: Always new with a crank.
- Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.
FAQ
Which side or position does it fit?
It is listed for the rear position. If you are replacing both sides, check whether you need one of each.
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Check the position: this part is listed as rear.
- Measure the part you are replacing and compare it with the specifications above.
Before you order: fitment and what to plan
Seals keep oil in where a shaft passes through a housing, such as the crankshaft or camshaft ends.
Fitment notes
- Specs, lead time and warranty come from Peterson and can change. The details above this guide are the latest we have.
Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.
Ask about fitmentPlan the whole job
- Timing parts. Front crank and cam seals sit behind the timing belt or chain, so they are often done together.
More for your car: Engine · All Crankshaft Seals · Engine
Questions about seal
Will this fit my car?
How do I know a seal is leaking?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.