Cylinder Components
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2-5 Day Ship In-stock items
3-12M Warranty MOQ 1 piece

Overhaul gasket kit for Mitsubishi S4L/S4L2 engines – OEM-equivalent quality

<p>Stop downtime and costly engine rebuilds — this <strong>OEM-equivalent</strong> overhaul gasket kit delivers factory-level sealing integrity for Mitsubishi S4L/S4L2 engines, so your equipment stays online longer with zero compromise on performance.</p> <p>It fits not just Mitsubishi’s own S4L and S4L2 variants (including rare specs like S4L2-Y362SD and S4L2-65CAM), but also critical OEM platforms like the CAT 304CR, Terex TC35, New Holland EC35, and Ingersoll Rand G23 — all with one verified kit. No more cross-referencing mismatched gaskets or risking leaks from inconsistent thicknesses: every seal is precisely torqued to match original surface finish specs and compression set behavior.</p> <ul> <li>Replaces genuine part numbers <strong>31A94-00081, 31A94-02060, 31A94-03020</strong></li> <li>Includes cylinder head, intake/exhaust manifold, oil pan, timing cover, and front/rear main seals — nothing missing</li> <li>Pre-tested for thermal cycling stability up to 120°C, matching OEM spec for long-haul generator and excavator duty cycles</li> <li>Ships same-day from Guangzhou warehouse — no waiting weeks for OEM backorders</li> </ul>

MOQ

1 Piece

Lead Time

2-5 Business Days

Shipping

120+ Countries

Warranty

3-12 Months

Compatible Brands

CAT Komatsu Hitachi Volvo Hyundai Doosan Kobelco SANY XCMG

Product Specifications

ParameterDetails
Part NameOverhaul Gasket Kit for Mitsubishi S4L/S4L2 Engines
Part Number (OEM Reference)31A94-00081, 31A94-02060, 31A94-03020, 644.600, 31A9400081, 31A9402060, 31A9403020, 644600
Brand CompatibilityMitsubishi, Caterpillar, Terex, New Holland, Ingersoll Rand, Atlas Copco, Massey Ferguson, Deutz-Fahr, SDMO, Weidemann, SAME, LG, TEKSAN, PEL, HFL, PRONAR, MAM, and others
Engine Model FitmentMitsubishi S4L, S4L2, S4L2-61SD, S4L2-Y263KL, S4L-Y262KL, S4L-61ST, S4L-T61ST, S4L2-T61ST, S4L2-61ES, S4L2-65CAM, and 20+ variants
MaterialMulti-layer steel (MLS) head gaskets, nitrile rubber sealing elements, high-temp silicone-coated cork composites, OEM-spec elastomers
ConditionNew Aftermarket
Warranty3–12 months against manufacturing defects
PackagingOriginal sealed box with labeled internal compartments; anti-static & moisture-resistant lining

Compatible Models

BrandApplicable Models
Caterpillar304CR
TerexHR14, HR16, TC35, TC29, TC37, HR16A, HR3.7
New HollandEC25, EC35
Ingersoll RandG16, G17, G23
Atlas CopcoAM29R, AM35R
Massey FergusonMF2405, MF2410, MF2415
MitsubishiMM35T, MM40CR, MM40SR, MT265, MT338, MT341, MT368, MFYS6
Deutz-FahrAgrokid 30, Agrokid 40, Agrokid 50
SDMOT12KM, T16K, T16U, T16UM, TN27SK, T27HK, Alize 15000 STDE, TM16UCM, TM16, R16C
Weidemann1070 D/M
SAMESolaris 40
LGLT360D, LT360HST
TEKSANTJ27MS, TJ16MS
PELJOB EB350, EB406
HFLH4M15M1CT, H4M20M1CT
PRONAR320 AM
MAMVS38, VY43

Tired of Engine Overhaul Delays? Get the Right Mitsubishi S4L Gasket Kit for Your CAT 304CR or Terex TC35

Every hour your excavator sits idle during an engine rebuild costs hundreds — even thousands — in lost productivity and rental penalties. Counterfeit gasket kits fail under load, causing coolant-oil mixing, cylinder misfires, and repeat teardowns. OEM kits take 3–4 weeks to arrive, while mismatched sets from generic suppliers lack torque retention specs or thermal expansion matching. You need precision-engineered reliability — not guesswork.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This Mitsubishi S4L gasket kit is manufactured in ISO 9001-certified facilities and undergoes full pre-shipment performance validation: pressure cycling at 12 bar, thermal soak testing up to 180°C, and dimensional verification per original Mitsubishi service drawings. Built for real-world engine overhauls on compact excavators, gensets, and agricultural tractors — including Caterpillar 304CR, Terex TC35, and New Holland EC35 — it delivers immediate fit and long-term sealing integrity without OEM price premiums.

Where This Part Works

This gasket set operates reliably in high-cycle construction sites, remote quarry power plants, port-side generator installations, and demolition zones where ambient temperatures swing from -10°C to +45°C and vibration levels exceed 8 g RMS. Under continuous duty in SDMO T16K generators or Terex TC35 hydraulic systems, precise compression-set resistance prevents blowout during cold starts and sustained high-load operation. The S4L2 overhaul kit ensures consistent cylinder sealing across all operating conditions — critical for emission compliance and fuel efficiency.

Engineering Details That Matter

Each gasket in this set is engineered to match OEM thermal expansion coefficients: MLS head gaskets use 0.12 mm stainless steel layers with Viton®-coated embossments for micro-conformity to cylinder head surface finish (Ra ≤ 1.6 μm). Valve cover gaskets feature cross-linked nitrile rubber (NBR) with Shore A 70 hardness — resisting oil swelling and UV degradation over 5,000 hours. Oil pan gaskets integrate molded silicone-cork composite with 30% graphite filler for improved heat dissipation and torque retention. All sealing surfaces are laser-etched with batch traceability codes — no generic stamping.

The Real Cost of Wrong Parts

A $25 counterfeit gasket kit can trigger $2,800 in labor rework, $1,200 in damaged cylinder heads, and 3 days of machine downtime — totaling over $4,500 in hidden TCO. Non-OEM-equivalent materials degrade rapidly above 130°C, leading to coolant contamination, bearing corrosion, and turbo failure. This S4L2 engine repair kit meets ISO 4545 hardness standards and JIS B 0601 surface roughness tolerances — ensuring 100% compatibility with factory torque sequences and OEM service intervals. Total cost of ownership drops by 42% versus OEM parts, with zero compromise on lifecycle reliability.

Why Customers Trust XUNPO

Only ISO 9001-certified factories supply our gasket kits — each batch undergoes incoming material inspection using spectrometry and tensile testers. Every kit is 100% function-tested under simulated engine thermal cycles before shipment. We provide 3–12 month warranty covering manufacturing defects — no restocking fees, no claim forms. With 10 years exporting to 120+ countries, our team has verified over 18,000 part-machine combinations. Our 20+ technical specialists respond to part-fit queries within 2 hours. And 10,000+ SKUs — including this Mitsubishi engine gasket set — are held in stock at our Guangzhou warehouse for same-day dispatch.

Packaging & Shipping

  • Individually compartmentalized sealed box with foam inserts and humidity indicator card
  • In-stock items ship within 2–5 working days after payment confirmation
  • Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), sea freight (25–40 days)
  • Real-time tracking number provided upon dispatch, updated until door delivery
  • Minimum order quantity: 1 piece — supports urgent field repairs and pilot builds

Get Your Mitsubishi S4L Gasket Kit Now

Your equipment isn’t waiting — neither should your parts. Send us your machine model (e.g., Terex TC35), current part number (e.g., 31A94-02060), and required quantity. We’ll reply within 24 hours with a competitive quote — and first-time buyers may request a sample for physical verification. With Guangzhou warehouse stock and global logistics, your overhaul stays on schedule.

Frequently Asked Questions

Q: Is this an original OEM part or an aftermarket replacement?

A: This is an OEM-equivalent aftermarket gasket kit, produced in ISO 9001-certified factories to meet or exceed Mitsubishi S4L/S4L2 original specifications.

Q: How do I confirm if this kit fits my specific engine or machine?

A: Provide your engine model (e.g., S4L2-61SD) or machine model (e.g., New Holland EC35) — our technical team verifies compatibility and replies within 2 hours.

Q: What is the warranty coverage?

A: 3–12 months against manufacturing defects. If a gasket fails due to material or workmanship, we replace it free of charge.

Q: What is the minimum order quantity?

A: 1 piece. We support single-unit orders for emergency repairs and diagnostic testing.

Q: How fast can I receive the kit after ordering?

A: In-stock kits ship within 2–5 working days. Express options (DHL/FedEx) deliver to most regions in 3–7 business days.

Q: Can I request a sample before placing a bulk order?

A: Yes — first-time customers may request one sample kit for physical evaluation and fitment testing.

Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com

Part Type Cylinder Components
MOQ 1 Piece
Lead Time 2-5 Business Days (in-stock)
Packaging Export Standard Packaging
Quality ISO Certified Factory
Warranty 3-12 Months
Origin Guangzhou, China
Compatibility CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, SANY, XCMG

Shipping Policy

  • In-stock items dispatched in 2-5 business days
  • Multiple freight options: Express, Air, Sea
  • Real-time tracking provided
  • Ships to 120+ countries worldwide
  • Export-standard packaging for all items

Warranty & Quality

  • 3-12 month warranty on all parts
  • ISO-certified factory partners
  • Strict QC inspection before dispatch
  • Zero counterfeit policy -- guaranteed
  • Optional sample testing for new buyers
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