Fitment Guarantee·Free Shipping $50+·Hassle Free Returns
4.9· 19,069 customers|Fit guaranteed
4.9from 19,069 verified customers
|"Perfect fit, exactly what I needed!"— John D.
GM Genuine Parts®Verified to fit 587 vehicles
| Vehicle | Trim | Engine | Notes |
|---|---|---|---|
| 2027 Buick Enclave | — | L4 2.5L | SINGLE USE |
| 2027 Chevrolet Corvette | ZR1 | V8 5.5L | SINGLE USE |
| 2026 Buick Enclave | — | L4 2.5L | SINGLE USE |
| 2026 Buick Encore GX | — | L3 1.3L | SINGLE USE; NORTH AMERICA(MAH),CANADA(MBC),MEXICO(MCX),EMISSION SYSTEM(NLB) |
| 2026 Buick Envision | — | L4 2.0L | EMISSION SYSTEM(NLB) |
| 2026 Buick Envista | Sport Touring | L3 1.2L | SINGLE USE |
| 2026 Cadillac CT5 | Premium Luxury | V6 3.0L | SINGLE USE |
| 2026 Chevrolet Corvette | Z06 | V8 5.5L | SINGLE USE |
| 2026 Chevrolet Corvette | ZR1X | V8 5.5L | SINGLE USE; Quantity varies by application |
| 2026 Chevrolet Trailblazer | — | L3 1.2L | SINGLE USE |
| 2026 Chevrolet Traverse | — | L4 2.5L | SINGLE USE |
| 2026 Chevrolet Trax | ACTIV | L3 1.2L | SINGLE USE |
| 2026 GMC Canyon | — | L4 2.7L | SINGLE USE |
| 2025 Buick Envista | — | L3 1.2L | SINGLE USE |
| 2025 Cadillac CT4 | Sport | L4 2.0L | SINGLE USE |
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts
Guaranteed fit — or free return
Currently out of stock
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
Ratings come from verified AutoBuffy buyers after delivery — no imported or paid reviews.
We do not list every part on earth — just the brands automakers actually trust. And we use AI to double-check not just the fitment but the product details on every listing, because we hate buying the wrong part as much as you do.
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The brands automakers actually put on the car. No white-label mystery boxes.
We're obsessed with fitment
Year, make, model, trim, engine — plus the fine print most sites skip — so it fits the first time.
Search any part number
The number off your old part, a competitor listing, or the dealer part — we cross it and confirm the match.
GM Genuine Parts Direct Injection High Pressure Fuel Pump O-Ring 12645181
Out of stock · guaranteed fit or free return
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Shipping calculated at checkout · Est. arrival Fri, Oct 23 to Fri, Oct 23
Ships To:This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Trusted Automotive Brand
GM Genuine Parts is a trusted manufacturer of quality automotive parts.
View all GM Genuine Parts productsThe GM Genuine Parts Direct Injection High Pressure Fuel Pump O-Ring (12645181) is a direct-fit replacement for 2014-2027 Chevrolet, Cadillac, GMC and 1 other make. UPC 808709817772.
Direct Injection High Pressure Fuel Pump O-Ring
The GM Genuine Parts Direct Injection High Pressure Fuel Pump O-Ring (12645181) is a direct-fit replacement for 2014-2027 Chevrolet, Cadillac, GMC and 1 other make. UPC 808709817772.
This GM Genuine Parts automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing
Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.
