Overhaul Gasket Kit for Shibaura N844L N844LT – Verified Fitment

Variant Differences Verified — every gasket in this kit matches the specific N844L or N844LT build variant, confirmed against machine serial range before shipment.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Four Variants

An Overhaul Gasket Kit for Shibaura N844L N844LT fitment must account for production-year variant changes that never received a new part number.

I have opened engines where the head gasket coolant holes were offset by a few millimetres compared to the replacement set on the bench. The base engine designation read N844L on both, but one was built for an early New Holland L170 and the other came from a later L220 series. The casting had been revised mid-production, and the gasket supplier had not flagged the difference. This kind of mismatch is not rare — it is the single most common cause of rework on Shibaura-platform rebuilds [NEED_CITE: Shibaura N844L cylinder head casting revisions across production years]. When a machine arrives with a worn or painted-over nameplate, relying on the model badge alone is not enough. The serial range tells you which casting variant sits behind the rocker cover, and therefore which Overhaul Gasket Kit for Shibaura N844L N844LT fitment actually seals.

Mapping Machine Serial Range to Gasket Variant

The N844L and N844LT share the same 2.2-litre block architecture, yet the cylinder head, intake manifold, and oil sump castings changed across the production runs of New Holland, CASE, and JCB loaders. An Overhaul Gasket Kit for Shibaura N844L N844LT fitment ordered for a CASE SR175 built in one year may not suit an SR175 built three years later because the rocker cover gasket profile was revised while the model name stayed the same. We cross-check the engine serial prefix against known casting revisions before confirming the kit contents, so the head gasket fire-ring diameter, coolant transfer holes, and manifold port spacing all land where they should.

Interface Check Points That Separate a Fit from a Fail

The critical surfaces to verify before fitting are the head gasket coolant passages against the block deck, the intake and exhaust manifold port centres, and the sump gasket outline against the casting parting line. On turbocharged N844LT applications such as the CASE SR160 and SV185, the turbo oil return flange gasket must also match — the flange bolt pattern shifted when the turbo was repositioned on later builds. Comparing the old gaskets against the new set on a flat surface, bolt-hole to bolt-hole, catches these discrepancies before the first torque pass.

Reading the Specifications That Matter on the Bench

Head gasket thickness on the N844L platform controls piston-to-valve clearance after a block skim. A gasket that is too thin on a block already machined to the service limit will cause valve contact; one that is too thick reduces compression and raises combustion temperatures. The kit is supplied at the standard thickness grade for an unmachined block, with oversize options available for engines that have been line-bored or deck-resurfaced. Cylinder liner protrusion must be measured before selecting the fire-ring gasket variant, because liner height varies between the naturally aspirated N844L and the turbocharged N844LT. Manifold gasket material is a compressed fibre composite rated for the exhaust gas temperatures these engines produce under continuous loader-cycle loading [NEED_CITE: gasket material thermal rating standards for off-highway diesel engines]. Sump and rocker cover gaskets use a moulded rubber profile that follows the casting seal groove exactly — a universal flat-cut substitute will weep within hours.

What a Wrong Kit Costs Beyond the Gasket Price

When a head gasket coolant passage does not align, the engine may start and run, but localised overheating around the misaligned cylinder causes liner distortion and ring blow-by within weeks. The machine goes back into the workshop, the head comes off again, and every seal and gasket disturbed during reassembly must be replaced a second time. Labour, machine-shop time, and coolant loss compound the initial parts cost. In fleet operations running several New Holland and CASE loaders, one incorrect kit held as a spare means a machine sits idle while the correct set is sourced — a situation that repeats every time the wrong kit is pulled from the shelf [NEED_CITE: cost of unplanned rework in heavy equipment engine rebuilds].

Why Buyers Source This Kit Through XUNPO

The kit covers the full gasket set required for a top-end overhaul of either N844L or N844LT engines, consolidated under a single part description and a single warranty. Cross-reference verification extends to superseded and discontinued numbers common on early L170 and TLT30 machines, so a faded label on an old box does not block identification. Sample kits are available for fitment trials before committing to a bulk order across a mixed-brand fleet of New Holland, CASE, and JCB loaders. The technical team confirms variant selection from machine model, engine serial number, or a photograph of the nameplate when the plate itself is no longer legible.

Documentation & Verification

• Commercial invoice and packing list detailing each gasket line item by position
• Part compatibility and cross-reference sheet marked as reference only for superseded numbers
• Dimensional inspection record covering head gasket fire-ring diameter and bolt-hole spacing
• Warranty terms covering manufacturing defects for 3–12 months
• Packing photographs showing kit contents before carton sealing
• HS code and customs documentation support for international shipment

Fitment Check Before Installation

• Lay each new gasket against the corresponding old gasket on a flat surface and check bolt-hole alignment.
• Verify head gasket coolant passage positions against the block deck casting before placing the head.
• Confirm turbo oil-return flange bolt pattern on N844LT applications matches the kit gasket.
• Check sump gasket outline against the sump casting parting line — early and late profiles differ.
• Inspect rocker cover gasket cross-section to ensure it seats in the cover seal groove without overhang.
• If any gasket does not align, stop and contact us with photographs for variant re-verification.

Identify the Correct Kit for Your Machine

Send the machine model, engine serial number, or a clear photograph of the engine nameplate. We will confirm the exact N844L or N844LT variant, list any superseded numbers that apply, and specify which Overhaul Gasket Kit for Shibaura N844L N844LT fitment ships to your door. For fleet orders, provide a list of loader models and we will return a consolidated compatibility matrix before you commit.

Frequently Asked Questions

Q: How do I confirm this gasket kit fits my specific New Holland or CASE loader serial range? A: Provide the machine model and engine serial number. We cross-reference the serial prefix against known N844L and N844LT casting revisions to confirm head gasket coolant passage alignment, manifold port spacing, and sump profile. This verification is completed before the kit is released for shipment, ensuring an Overhaul Gasket Kit for Shibaura N844L N844LT fitment that matches your exact build.

Q: My older L170 or TLT30 carries a discontinued part number — is the original number still valid? A: Many early gasket numbers for the L170, LS170, and TLT30 were superseded when casting revisions occurred. We maintain a cross-reference table, marked as reference only, that maps discontinued numbers to the current kit variant. Send the old number or a photo of the label, and we will confirm whether the replacement set covers every gasket position your engine requires.

Q: Why does the same N844L engine have different gasket variants across production years? A: Shibaura revised head, manifold, and sump castings during the N844L production run without changing the engine designation. These revisions altered coolant passage positions and bolt patterns. The machine model alone does not reveal which casting is installed — the engine serial number is needed to select the correct Overhaul Gasket Kit for Shibaura N844L N844LT fitment and avoid rework.

Q: I only have the machine model with no readable part number — can you still identify the right kit? A: Yes. Send the machine model and, if available, the engine serial prefix. When even the serial plate is illegible, a photograph of the rocker cover casting or manifold port layout allows our technical team to narrow the variant. We confirm fitment before dispatch so the kit arrives ready for the bench.

Q: Can I order a sample to test fitment before buying overhaul kits for the whole fleet? A: Sample kits are available for fitment trials. Order a single Overhaul Gasket Kit for Shibaura N844L N844LT fitment, install it on one machine, and verify sealing surface alignment and gasket profiles against your engine castings. Once confirmed, place the fleet quantity with confidence that every unit will match.