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Rear Main Seal Adapters

Rear Main Seal Adapters

Rear Main Seal Adapters

Rear main seal adapters prevent leaks around the crankshaft seal, adding a layer of reliability to your engine’s configuration. They’re especially beneficial for adapting modern components to legacy setups. Use them with additional customization solutions for a tailored performance build.

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  • Allstar Performance Replacement P-Bolt with Nut for Rear Main Seal Adapter ALL99135

    Allstar Performance Replacement P-Bolt with Nut for Rear Main Seal Adapter ALL99135

    ALLSTAR PERFORMANCE

    $35.99
    If you're running an Allstar Performance Rear Main Seal Adapter, you need a replacement P-Bolt and nut kit that matches the precision and durability of your engine setup. This steel fastener assembly with black oxide finish resists corrosion while...
    ALL99135
    SKU:
    ALL99135
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    ALL99135
    $35.99
    Qty in Cart: 0
    Quantity:
    Price:
    $35.99
    Subtotal:
  • Rear Main Seal Adapter 86-up Pan ALL26126

    Allstar Performance Rear Main Seal Adapter 86-up Pan ALL26126

    ALLSTAR PERFORMANCE

    $132.99
    Upgrade your Small Block Chevy build the right way with the Allstar Performance Rear Main Seal Adapter (ALL26126) — a must-have kit that lets you ditch that old two-piece seal setup and step up to a modern, leak-resistant one-piece design. Whether you're...
    ALL26126
    SKU:
    ALL26126
    Availability:
    Ships Same Business Day
    Weight:
    1.27 LBS
    MFG Part #:
    ALL26126
    $132.99
    Qty in Cart: 0
    Quantity:
    Price:
    $132.99
    Subtotal:
  • Rear Main Seal Adapter Pre-86 Pan ALL26125

    Allstar Performance Rear Main Seal Adapter Pre-86 Pan ALL26125

    ALLSTAR PERFORMANCE

    $199.99
    Upgrade your Small Block Chevy build with confidence using the Allstar Performance Rear Main Seal Adapter (ALL26125) — the smart solution for bridging a 1-piece block with a 2-piece crank seal setup. Machined from premium billet aluminum, this adapter...
    ALL26125
    SKU:
    ALL26125
    Availability:
    Ships Same Business Day
    Weight:
    1.19 LBS
    MFG Part #:
    ALL26125
    $199.99
    Qty in Cart: 0
    Quantity:
    Price:
    $199.99
    Subtotal:
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Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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