Engines and Components› Pistons and Piston Rings

SEALED POWER

LOCK

$46.42

SKU: S03T FP-4M8311

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sealed Power FP-4M8311 is a lock designed for various heavy machinery applications. It is compatible with a range of Caterpillar equipment, including Motor Graders (12F, 12G, 140G, 14E), Pipelayers (583H), Track-Type Tractors (D8H), Trucks (773), Vehicular Engines (D346), Wheel Loaders (950, 966C, 980B, 992), Wheel Scrapers (657), and Wheel Tractors (631C, 637, 641, 641B, 650B, 651, 657, 666).

This aftermarket part offers a reliable choice for heavy-duty use. It has a weight of 0.1 lbs and dimensions of 7.62 cm (length), 5.08 cm (width), and 2.54 cm (depth).

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSEALED POWER
Part NumberS03T FP-4M8311

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy