HomeUsed EnginesJeep1990 Wrangler 4.2L

1990 Jeep Wrangler Engine 6 258 4.2L VIN M 8Th Digit
In stock

⚠️ Sample image shown. Actual product photos will be shared before shipping

Compression tested
📸Photo approval
🛡️VIN verified
📦Insured freight
💯30-day returns
Inspection reportUnit AMS-UE-372
  • Compression, all cylindersPass
  • Cylinder leak-downPass
  • Oil pressure & pan inspectionPass
  • Head & block for cracksPass
  • Timing componentsPass
  • Coolant passages & water pumpPass
  • External seals & gasketsPass
  • Casting and stamped numbers verifiedPass
  • Odometer reading recorded106,319

Inspected [DATE] by [TECHNICIAN ID] · Full report travels with the unit

Condition
Used OEM, tested, complete assembly
Mileage
106,319 recorded from the donor vehicle
Engine code
4.2L · VIN M 8Th Digit
Fitment
VIN-verified before dispatch

Used engine · Grade A · OEM

1990 Jeep Wrangler Engine 6 258 4.2L VIN M 8Th Digit

SKU AMS-UE-372Tested & complete
106,319
Miles
A
Grade
6 Month
Warranty
Free
Shipping
1

Choose your unit

3 units on hand
Your price
$2,243 106,319 miles · 6 mo warranty · Grade A

Price in USD. Freight included. Taxes calculated at checkout. No restocking fees.

In stock — 1 unit at this mileage

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Photo Approval Guarantee
Before shipping, we send photos of your exact parts on the pallet for approval. Not satisfied? Get a full refund, no questions asked.

Engine DetailsExactly what you get

Year
1990
Make
Jeep
Model
Wrangler
Size
4.2L
VIN Position
M 8Th Digit
SKU
AMS-UE-372

Condition & QualityProof, not promises

Condition
Tested and complete
Mileage
106,319 miles
Compression Tested
Yes
Leak Inspected
Yes
Run Tested
Yes
Photo Approval
Before Shipping

Warranty & ReturnsBacked for 6 months

Standard Warranty
6 month, Parts
Extended Warranty
Up to 3 Years Available
Return Window
30 Days, Free Returns
Refund Guarantee
100% Money Back
Fitment Guarantee
100% with VIN Verified
Damage Coverage
Freight Insured

ShippingFree to the lower 48

Prep & Ship Time
3–5 business days
Transit Time
4–5 business days
Shipping Cost
FREE — Nationwide
Shipping Method
Palletized Freight
Tracking
Provided
Pre-Ship Approval
Photos Required
Insurance
Included

Complete assembly

What's in the crate

This ships as a complete assembly, not a bare core. Here's the packing list and what transfers from your old unit.

Shipment manifestAMS-UE-372 Grade A

Included in this shipment

  • Engine block & crankshaftPacked
  • Cylinder heads & valvetrainPacked
  • Pistons, rods & bearingsPacked
  • Timing cover, chain & gearsPacked
  • Oil pan & valve coversPacked
  • Intake & exhaust manifoldsPacked

Transfer from your vehicle

  • Alternator & starterReuse
  • A/C compressor & PS pumpReuse
  • Sensors, throttle body & wiringReuse
  • Flywheel / flexplateReuse
  • Fluids, filters & gasketsReuse
30Day

30 days Return and refund

If you change your mind, you may return an uninstalled and unmodified unit within 30 days of delivery. We cover the return freight and there is no restocking fee. If a VIN-verified part doesn't fit, we replace it or refund in full.

[CONFIRM] — this must match your published return policy exactly, including any conditions on installed parts.

The difference

Us versus a salvage yard

What you're comparing
American
Motor Supply
Typical yard
Free nationwide freight
Compression and run tested before shipping
Photos of your unit sent before dispatch
VIN fitment verification
Palletized, strapped and fully insured
One named specialist on your order

Talk to a specialist

Still not sure? Ask a person.

Same-day answers on fitment, mileage and freight. No pressure, no script.

$2,243