The same drivetrain pro who writes the diagnostic articles on this site also runs a parts store. Solenoids, sensors, seal kits, rebuild kits, fluids, snap-ring pliers, and bench tools — ready to ship, no parts-store counterman runaround.
Collections organized by transmission family. Solenoids and sensors at the top, kits and hard parts behind. Click through to the store to filter by part type, OEM number, or vehicle year.
Shift solenoids, TCC PWM, input/output speed sensors, sun-shell kits, pump bushings, and full rebuild kits. The bread-and-butter GM platform.
Shop the 4L60E collection → GM Heavy DutyHeavy-duty solenoids, TCC kits, sprag kits, valve body fixes for the truck-and-tow workhorse. Built for 1991-2009 GM trucks and SUVs.
Shop the 4L80E collection → GM 6-SpeedSolenoid packs, TCM-related sensors, valve body fixes, and shudder-fix kits for 2006+ GM late-model transmissions.
Shop the 6L80 collection → Cummins / RamSonnax-grade upgrades, solenoid blocks, accumulator kits, billet input shafts — for the Cummins truck transmissions that take real abuse.
Shop the 68RFE collection → FordSolenoid bodies, pressure sensors, leakage-pin fixes, and valve body rebuild kits for the F-150 / Mustang / Expedition platform.
Shop the 6R80 collection → Bench ToolsSnap-ring pliers (HD, long-reach, 4-pc sets), seal installers, torque-angle gauges, noid lights, cooler-line tools, and band-adjustment kits.
Shop bench tools →You aren't gambling on whether the parts-store kid knows the difference between a 4L60E TCC solenoid and a PWM solenoid. The listings are written by someone who's installed thousands.
We don't list anything we haven't run on the bench or in a customer vehicle. If a brand has comeback issues, it doesn't make the cut.
Most orders ship same business day. Tracked USPS or UPS. 30-day return window if you ordered the wrong part — we'll swap it.
Listings include OEM numbers, common aftermarket cross-references, and vehicle-fit notes so you can match against what's on the bench fast.
Stocked items ship from real warehouses, not drop-shipped from overseas. What you order is what arrives, when it says it'll arrive.
Rebuild kits packaged by transmission family. Bench-stock bundles for the high-turn parts. Less time pulling line-by-line, less risk of missing a part mid-job.
Browse the full storefront, search by OEM number, or jump straight into the collection for your current job.
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