We know drivetrains.
Serving North Texas since 1997. We pull, test, and stand behind every engine and transmission that leaves the gate.
Bolt On Motors isn't a faceless parts counter. We're wrenches first. We know what fails, what lasts, and which drivetrain to use to keep you on the road.
We cover 1988 through 2023 — domestic pickups, SUVs, Japanese sedans, heavy-duty diesel. If it was driven in Dallas, we've pulled it, tested it, and sold it.
Every engine carries a 90-day minimum warranty. Diesels and low-mile pulls carry 180. If it fails, we make it right.
Quality built into every reman
This is the controlled work behind the warranty: sound cores, crack checks, precision machining, renewed wear items, measured assembly, and final validation before release.
- QUALITY 01
Sound core selected
Only qualified material moves forward. Cores are cleaned, stripped, and screened before precision work begins.
- QUALITY 02
Hidden damage checked
Blocks, cranks, rods, and heads are checked for cracks or damage before machining or assembly.
- QUALITY 03
Precision restored
Critical surfaces are prepared to spec to protect sealing, oil control, compression, and fit.
- QUALITY 04
Wear items renewed
Bearings, rings, gaskets, seals, timing components, oil pumps, and lifters are renewed where applicable.
- QUALITY 05
Assembly measured
Certified reman technicians torque, measure, and document key clearances before the build is closed.
- QUALITY 06
Final validation
Run-in and load testing verify oil pressure, compression, sealing, and performance before release.
Build-floor quality checks
Real photos and clips from inspection, measurement, machining, assembly, and final review.
- Verification
- Close inspection
- Focus
- Quality control
Parts checked up close before moving to the next station.

Critical measurements
Key surfaces checked for fit and finish before assembly closes.
Precision machining
Machining and surface prep help restore proper tolerances.

Controlled assembly
Dedicated work stations keep each build organized and traceable.
Documented flow
Units move through a repeatable build sequence.

Final review
Visible finishing points are checked before release.

Ready for delivery
Completed long-blocks staged for final inspection.
Backed by a nationwide 3-year / 100,000-mile parts-and-labor warranty. Quality is verified before release, and support continues after delivery.
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