Cylinder Components
Overhaul Rebuild Kit Replacement for Cummins B3.3 QSB3.3 Powertrain
<p>Overhaul kit contents verified item-by-item before dispatch to ensure no omitted components</p>
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<p>Get your Isuzu 4LE2-powered excavator back online faster — with OEM-equivalent sealing performance and zero guesswork on part compatibility. This <strong>Isuzu 4LE2 gasket kit</strong> delivers full-engine rebuild confidence for Hitachi ZX40U/ZX50U/ZX55UR, CASE CX75/CX80, and Kobelco SK70/SK80 — all in one verified set.</p> <ul> <li>Covers every critical seal: head, intake/exhaust manifolds, oil pan, timing cover, valve cover, and water pump — including the often-missed cylinder liner O-rings (a known failure point on high-hour 4LE2-XYBB01 engines)</li> <li>No more cross-referencing headaches: includes all 16 confirmed OEM replacement numbers like 5-87814-313-1 and 8-97235-261-0 — pre-verified against Isuzu’s latest service bulletins</li> <li>Ships same-day from our Guangzhou warehouse — no waiting weeks for OEM backorders or risking counterfeit kits with inconsistent torque specs</li> <li>Backed by 12-month warranty and real technical support from engineers who’ve rebuilt these engines themselves</li> </ul>
MOQ
1 Piece
Lead Time
2-5 Business Days
Shipping
120+ Countries
Warranty
3-12 Months
Compatible Brands
| Parameter | Details |
|---|---|
| Part Name | Overhaul Gasket Kit for Isuzu 4LE2 Engine |
| Part Number (OEM Reference) | 5-87814-313-1, 8-97235-261-0, 8-97201466-1, 5-87814-313-2, 5-87818-348-0, 5-87818-011-0, and 14 additional cross-references |
| Brand Compatibility | Isuzu, Hitachi, CASE, Kobelco |
| Machine Model Fitment | Hitachi ZX40U, ZX50U, ZX55UR, ZX55UR-HHE, EX55UR-3; CASE CX75, CX80; Kobelco SK70, SK80 |
| Engine Fitment | Isuzu 4LE2, 4LE2-XYBB01 |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original sealed box with anti-static inner lining and moisture-resistant outer carton |
| Brand | Applicable Models |
|---|---|
| Hitachi | ZX40U, ZX50U, ZX55UR, ZX55UR-HHE, EX55UR-3 |
| CASE | CX75, CX80 |
| Kobelco | SK70, SK80 |
Every hour your excavator sits idle during engine rebuild costs hundreds — sometimes thousands — of dollars in lost productivity. Many operators order gasket kits based on vague part numbers or unverified listings, only to find mismatched sealing surfaces, incorrect bolt patterns, or substandard rubber compounds that fail within weeks. OEM lead times of 2–4 weeks compound downtime, while counterfeit kits cause coolant-oil mixing, cylinder head warping, and repeat teardowns.
This Isuzu 4LE2 gasket kit is manufactured in ISO 9001-certified facilities under strict dimensional and material control. All components undergo pre-shipment pressure testing and thermal cycling validation to match OEM performance specs. Designed specifically for high-cycle excavator applications like Hitachi ZX40U and CASE CX75 engine overhauls, it ensures reliable compression sealing across cylinder heads, oil pans, valve covers, and timing covers — even under continuous load at construction sites and quarries.
This gasket kit performs reliably in demanding environments: urban excavation where frequent start-stop cycles stress thermal expansion tolerances; quarry operations with abrasive dust ingress requiring superior sealing integrity; port-side material handling where salt exposure demands corrosion-resistant coatings; and demolition jobs subjecting engines to shock loads and vibration. It directly supports uptime-critical applications — especially for fleet operators managing Hitachi ZX55UR and Kobelco SK80 units across multi-project schedules. Isuzu 4LE2-XYBB01 head gasket set compatibility ensures correct fit for rebuilt engines meeting factory service intervals.
The cylinder head gasket uses multi-layer steel (MLS) construction with precision-etched embossing to maintain 35–45 bar combustion chamber sealing pressure under transient torque spikes. Valve cover gaskets incorporate nitrile rubber (NBR) with 70 Shore A hardness for resistance to hot engine oil and thermal aging up to 150°C. Oil pan gaskets feature closed-cell EPDM foam core bonded to fiber-reinforced backing — compressing uniformly at 0.8–1.2 mm to prevent leaks without over-torquing bolts. All gaskets meet ISO 3601-1:2019 dimensional tolerances (±0.15 mm), ensuring full interchangeability with original Isuzu 4LE2 assemblies without shimming or modification.
A $35 counterfeit gasket kit may seem economical — until it fails after 80 operating hours, triggering a second engine disassembly, labor charges exceeding $1,200, and 3-day site shutdown penalties. Poorly formulated rubber swells in biodiesel-blended oils, compromising crankcase ventilation. Incorrect thickness gaskets alter valve train geometry, accelerating camshaft wear. Genuine aftermarket parts like this Isuzu 4LE2 gasket kit eliminate hidden TCO drivers: no rework labor, no unplanned downtime, no warranty voidance from non-OEM components. Our kits comply with ISO/TS 16949-aligned production controls — not just appearance, but functional equivalence.
We source exclusively from ISO 9001-certified factories with documented incoming material inspection records. Every gasket kit undergoes 100% visual and dimensional verification before packaging. All kits pass simulated thermal cycling (–20°C to +150°C × 5 cycles) and hydraulic pressure hold tests (40 bar for 30 minutes). We offer 3–12 month warranties covering manufacturing defects — no restocking fees, no hassle. With 10 years of export experience to 120+ countries, our technical team has verified over 18,000 excavator part matches since 2016. You’ll get accurate part confirmation within 2 hours — backed by 20+ engineers who’ve serviced CAT, Komatsu, and Hitachi field repairs. Our Guangzhou warehouse holds 10,000+ commonly used SKUs, including this Isuzu 4LE2 gasket kit, ready for same-day dispatch.
Your excavator’s next overhaul shouldn’t wait for overseas shipping or uncertain quality. Send us your machine model (e.g., Hitachi ZX50U), required quantity, and destination — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample kit for physical verification before bulk order. Every day delayed is revenue lost; confirm your order today and resume operation faster.
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 match original Isuzu 4LE2 specifications for dimensions, material grade, and sealing performance.
Q: How do I confirm this fits my specific machine?
A: Provide your exact machine model (e.g., CASE CX80), engine serial prefix if available, and current gasket part number — our technical team will verify compatibility and respond within 2 hours.
Q: What is the warranty coverage?
A: 3–12 months against manufacturing defects. If any gasket shows premature failure due to material or workmanship issues, we replace it free of charge.
Q: What is the minimum order quantity?
A: 1 piece — no exceptions. We support urgent field repairs and small-batch rebuilds.
Q: How fast can you ship?
A: In-stock items ship within 2–5 working days. Express courier options (DHL/FedEx) deliver to most destinations in 3–7 business days.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers may request one sample kit for physical testing and fitment validation prior to full order.
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
<p>Overhaul kit contents verified item-by-item before dispatch to ensure no omitted components</p>
View Details<p>Stop cylinder head leaks and prevent costly engine downtime with this high-tensile <strong>cylinder head bolt 80105-76041-71 for Toyota 4Y forklift</strong> — engineered to match OEM torque specs and thread pitch tolerance (M10 × 1.25, grade 10.9) so your 4Y engine stays sealed under continuous heavy-load cycles.</p> <ul> <li>Fits 8FGCU20, 8FGCU15, 7FGCU20, and 30+ other Toyota forklift & towing tractor models — no guesswork on cross-references</li> <li>Replaces not just 80105-76041-71 but also 90105-12952-71 and 9001A-10006 — verified against Toyota’s service bulletin TSB-4Y-BOLT-2023</li> <li>Heat-treated in controlled atmosphere furnaces — eliminates micro-fractures that cause premature stretch in high-temp forklift applications</li> <li>Ships same day from Guangzhou warehouse — no waiting weeks for OEM backorders</li> </ul>
View Details<p><strong>Overhaul Kit for Kubota V3307, V3307T, V3307-DI, STD Grade</strong> — includes pistons, rings, cylinder liners (semi-finished), main and rod bearings, thrust washers, valves, guides, seats, and complete gasket set.</p> <ul> <li>Sized as a matched system for cylinder and bottom-end rebuilds, with valve train and bearing components supplied to work within the same sequence</li> <li>Semi-finished liners allow final honing to actual bore condition after teardown; confirm whether your block remains at STD or has been machined oversize previously</li> </ul> <p>Kit contents verified line-by-line against the V3307 series component list before dispatch.</p>
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View DetailsSend us your inquiry and our technical team will verify the part and provide a competitive quote within 24 hours. MOQ starts from 1 piece.
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