Engines and Components› Engines, Blocks and Components

SEALED POWER

COMPLETE OVERHAUL KIT-FIXED

$4,510.94

SKU: S03T FP-12OH23522947

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

Advanced — 4+ hours

Description

This is a complete overhaul kit for the Detroit Diesel 12V71NA engine. It includes an overhaul gasket set, cylinder kit, valve cover gaskets, thrust washers, main bearing set, and connecting rod shell set. This kit is designed for standard specifications.

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-12OH23522947

Videos

Detroit Diesel 12V71 Long Block #detroitdiesel #dieselpropower

Detroit Diesel 12V71 Long Block #detroitdiesel #dieselpropower
Rebuilt Blower For Detroit Diesel 6V71 & 12V71 #detroitdiesel #dieselpropower

Rebuilt Blower For Detroit Diesel 6V71 & 12V71 #detroitdiesel #dieselpropower
Detroit Diesel 12V71 Long Block

Detroit Diesel 12V71 Long Block
Detroit Diesel 12V71 Long Block In The Works#detroitdiesel #dieselpropower

Detroit Diesel 12V71 Long Block In The Works#detroitdiesel #dieselpropower

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.

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