At a Glance
- Condition: OEM used, all 4 forward gears and reverse tested
- Availability: In stock, GM SM420 4-speed manual transmissions available
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- Donor truck era confirmed (1947-1967 production range)
- Granny low (7.05:1) engagement verified specifically (non-synchronized)
- Bell housing pattern confirmed (235 / 261 Inline-6 or early SBC)
- Input shaft spline count verified
- 4WD vs 2WD configuration confirmed
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
6.6 Duramax Engine for Sale | OEM Used GM 6.6L V8 Turbo Diesel (LB7 / LLY / LBZ / LMM / LML / L5P Variants)
Rated 5.00 out of 5
2 reviews
In Stock
At a Glance
- Condition: OEM used, all 8 cylinders compression tested
- Availability: In stock, multiple RPO variants available (LB7, LLY, LBZ, LMM, LML, L5P)
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- All 8 cylinders compression tested, results available before you pay
- RPO variant confirmed (LB7 vs LLY vs LBZ vs LMM vs LML vs L5P)
- Fuel injector operation verified (especially critical for LB7 variant)
- Turbocharger condition inspected
- EGR cooler condition documented (LLY onward variants)
- DPF and SCR system status disclosed (LMM onward / LML onward variants)
- Donor application documented (Silverado HD, Sierra HD, Hummer H1, etc.)
- Allison 1000 vs ZF6 manual compatibility confirmed
- 100% fitment verified before every order ships
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
SM420 Transmission for Sale | OEM Used GM Heavy-Duty 4-Speed Manual with Granny Low Gear (1947-1967)
Rated 5.00 out of 5
2 reviews
In Stock
At a Glance
- Condition: OEM used, all 4 forward gears plus reverse function tested
- Availability: In stock, multiple SM420 cores from 1947-1967 donor trucks
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- All 4 forward gears plus reverse function tested
- Granny low 7.05:1 first gear engagement verified
- Output shaft spline count documented (for driveshaft / yoke compatibility)
- Bellhousing pattern confirmed (varies between Chevy / GMC / military)
- Donor truck application documented (Advance Design, Task Force, New Design, Blue Chip)
- 100% inspection before every order ships
- Backed by a 15 day replacement warranty against internal defects
GM 6L90 Transmission for Sale | OEM Used GM Hydra-Matic 6L90 / 6L90E Heavy-Duty 6-Speed Automatic Transmission
Rated 4.00 out of 5
2 reviews
In Stock
At a Glance
- Condition: OEM used, all 6 forward gears and reverse function tested
- Availability: In stock, used GM 6L90 transmissions available
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- Donor vehicle confirmed (Silverado HD, Sierra HD, Express, Savana, Suburban, CTS-V, Camaro ZL1)
- Engine pairing confirmed (6.6 Duramax, 6.0 Vortec, 6.2 EcoTec3, 5.3 EcoTec3, 6.2 LSA Supercharged)
- All 6 forward gears and reverse tested
- Torque converter lockup function verified
- Adaptive shift operation confirmed
- Tow/Haul Mode function verified
- TCM calibration documented
- Fluid inspection for burned smell or metal contamination
- 100% inspection before every order ships
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
Used 4L80E Transmission for Sale | OEM Used GM Heavy-Duty 4-Speed Automatic with Overdrive (TH400 Successor)
Rated 5.00 out of 5
2 reviews
In Stock
At a Glance
- Condition: OEM used, all 4 forward gears and reverse function tested
- Availability: In stock, 2WD and 4WD configurations available
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- All 4 forward gears and reverse function tested
- Lockup torque converter operation verified
- Configuration confirmed (2WD vs 4WD)
- Bellhousing pattern confirmed (gas vs diesel bolt pattern)
- Output shaft spline count documented
- Donor application documented (Silverado HD, Hummer H1, Express, etc.)
- 100% fitment verified before every order ships
- Backed by a 15 day replacement warranty against internal defects
At a Glance
- Condition: OEM used, all 4 forward gears and reverse tested
- Availability: In stock, GM 4L60E transmissions available
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- Donor vehicle confirmed (Silverado / Sierra / Tahoe / Suburban / Yukon / Escalade / Camaro / Firebird / Corvette / Roadmaster)
- Engine pairing documented (4.3 V6 / 4.8 / 5.3 / 6.0 Vortec / 5.7 SBC / LS family)
- Model year and generation identified
- Lock-up torque converter function verified
- Electronic shift solenoid function tested
- Pan inspected for metal contamination
- Output yoke spline verified (27 spline, 0.810 inch diameter)
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
700R4 Transmission for Sale | OEM GM 4-Speed Overdrive Automatic (1982 to 1992)
Rated 4.50 out of 5
2 reviews
In Stock
Product Overview
- Transmission Type: 4-speed automatic with overdrive and lockup torque converter
- Case Material: Aluminum
- Production Years: 1982 to 1989 (700R4) | 1990 to 1992 (4L60, same transmission)
- Manufacturer: General Motors
- Condition: OEM used, gear tested and inspected
- Availability: Multiple year ranges from 1982 to 1992 in stock
- Shipping: Free freight to all 50 states, 5 to 10 business days
- Gear tested through all 4 forward gears and reverse before shipping
- 27-spline versus 30-spline input shaft confirmed before shipping
- TV cable adjustment requirement disclosed on every order, the most common cause of 700R4 failure
- Lockup converter wiring requirement noted for swap applications
- Zero core charge required, your existing transmission stays with you
- Backed by a 15 day replacement warranty against internal defects
TH400 Transmission for Sale | OEM GM Turbo Hydra-Matic 400 3-Speed Automatic
Rated 4.50 out of 5
2 reviews
In Stock
Product Overview
- Type: 3-speed longitudinal automatic, heavy-duty
- Compatible Engines: All GM V8 (small block, big block, Pontiac, Buick, Olds, Cadillac). Adapter required for Ford or Mopar.
- Gear Ratios: 2.48 / 1.48 / 1.00
- Case Material: Cast aluminum alloy
- Condition: OEM used, tested and inspected
- Availability: Multiple year ranges 1964 to 1990 in stock
- Shipping: Free freight to all 50 states, 5 to 10 business days
- Pressure tested and shift tested before every order ships
- Tail housing length confirmed (short, medium, or long) before every order
- BOP bell housing verified (for all GM V8 direct fit)
- Donor vehicle disclosed (Camaro, Chevelle, C10, Corvette, GMC, etc.)
- 2WD or 4WD configuration documented
- Fitment verified before every order ships
- Zero core charge required, your existing transmission stays with you
- Backed by a 15 day replacement warranty against internal defects
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- Displacement: 440 cu in (7.2L)
- Engine Family: Chrysler RB (Raised Block) Series
- Configuration: V8, OHV, 16 valves
- Horsepower: 350 to 390 hp (1966 to 1971), declining to 275 hp by 1974
- Condition: OEM used, compression tested and inspected
- Availability: Standard, Magnum, and Six Pack variants, call (855) 634-4447 to confirm
- Shipping: Free freight to all 50 states, 5 to 10 business days
- All 8 cylinders pressure-tested with results shared before payment
- Casting number documented: year, head type, and variant confirmed
- Six Pack versus single 4V configuration confirmed before every order ships
- Zero core charge required, your existing engine stays with you
- Backed by a 15 day replacement warranty against internal defects
BMW B58 Engine for Sale | OEM Used 3.0L Turbocharged Inline-6 (340i, M340i, GR Supra)
Rated 4.50 out of 5
2 reviews
In Stock
At a Glance
- Condition: OEM used, fully inspected and documented before shipping
- Availability: In stock, Gen 1 and B58TU1 variants available, call to confirm
- Shipping: Free shipping to all 50 states via freight pallet, 5 to 10 business days
- B58 generation confirmed, B58B30M0 or B58TU1 ML/OL documented
- Valve cover gasket, VANOS, cooling system, and PCV condition assessed
- Carbon buildup disclosed (walnut blasting recommended at installation)
- 100% fitment verified before every order ships
- No core charge required
- Backed by a 15 day replacement warranty against internal defects
Dodge 230 Flathead Engine for Sale | OEM L-Head Inline-6 (1942 to 1959)
Rated 4.50 out of 5
2 reviews
In Stock
Product Overview
- Displacement: 230.2 cu in (3.8L)
- Engine Family: Chrysler L-Head (Flathead) Inline-6
- Configuration: Inline-6, L-Head (side-valve flathead), 12 valves (in block)
- Horsepower: 95 to 130 hp, application and year dependent
- Condition: OEM used, compression tested and inspected
- Availability: Call to confirm current availability
- Shipping: Free freight to all 50 states, 5 to 10 business days
- All 6 cylinders pressure-tested with results shared before payment
- 218 versus 230 displacement confirmed before every order ships
- Year and application documented: car, truck, or Power Wagon variant noted
- Zero core charge required, your existing engine stays with you
- Backed by a 15 day replacement warranty against internal defects
