Matched Rebuild Sets Shipped Together — every connecting rod leaves our Guangzhou warehouse paired with the correct oversize bearings and piston assemblies so the N844 block goes back together right the first time.
Technical Specifications
| Parameter |
Value |
| Part Number |
115026330 |
| Product Type |
Connecting Rod |
| Cross-Reference |
115026330, P115026330, SBA115026330, 87763364, SBA115026330C, SBA115026330R (reference only) |
| Machine Fitment |
New Holland TC35D, L220, L175, L213, L215, L216, L218, C175, TT45A, TT50A, G6030, G6035, MC22, MC28, MC35, 1920, 2120, 3415, BOOMER 2030, BOOMER 2035, BOOMER 2040, BOOMER 2045, BOOMER 2050D, BOOMER 4055, BOOMER 4060, BOOMER 45D, BOOMER 50D, BOOMER 8N, T1510, T1520, T1530, T2210, T2220, T2310, T2320, T2410, T2420, TC31DA, TC33DA, TC35DA, TC40DA, TC45DA, TC55DA, WORKMASTER 45, WORKMASTER 50, WORKMASTER 55 |
| Material |
42CrMo alloy steel |
| Big-End Bore Tolerance |
±0.005 mm |
| Heat Treatment Hardness |
HRC 28–32 |
| Bolt Torque Specification |
55 ± 3 N·m |
| Surface Finish |
Micro-finished bearing surfaces |
| Oversize Grades Available |
STD, 0.25, 0.50 |
| Condition |
New Aftermarket |
| Warranty |
3–12 months against manufacturing defects |
| Standards |
ISO 9001, ISO 6892-1 |
Application Suitability
| Engine System |
Related Components |
| Rotating assembly – Shibaura N844 / N844L 2.2L diesel |
Crankshaft journals, con rod bearings (STD / oversize), piston assemblies |
| Overhaul kit – compact tractor and skid steer engines |
Full gasket set, main bearings, thrust washers, oil pump |
| Single-cylinder repair – partial rebuild scenario |
Matched bearing shells, piston rings, wrist pin, circlips |
| Lubrication fault diagnosis – repeat rod or bearing failure |
Oil pump assembly, gallery plugs, oil filter, pressure relief valve |
Why Overhaul Kits Miss the Connecting Rod Grade Your Engine Actually Needs
A complete rebuild kit rarely accounts for what the last mechanic already changed inside your block.
Overhaul kits marketed as "full" frequently ship with standard-grade bearings and a connecting rod that assumes a virgin crankshaft. In reality, a previous rebuild may have already reground one or more journals, meaning the replacement rod and bearing shells must match that oversize dimension — not the factory spec. I have seen engines come back apart within weeks because the kit supplier never asked whether the crankshaft had been machined before. The Connecting Rod for Shibaura N844 engine rebuild must be selected against measured journal diameter, not against the engine model alone. [NEED_CITE: engine rebuild practice standards for agricultural diesel engines]
When the oversize grade is wrong, oil film clearance collapses under load. The bearing shell rides metal-to-metal on the journal, heat builds rapidly, and the connecting rod big-end distorts past its ±0.005 mm tolerance. At that point you are not replacing one rod — you are replacing the entire rotating assembly again.
Where This Rod Sits Inside the N844 Rebuild Sequence
The connecting rod is the bridge between piston reciprocation and crankshaft rotation, and its dimensional accuracy governs everything downstream. In a full Shibaura N844 or N844L overhaul, the rod must arrive matched to the piston assembly it will carry and the bearing shells that will wrap around the crankshaft journal. Supplying this Connecting Rod for Shibaura N844 engine rebuild alongside its mating components from a single account eliminates the tolerance stacking that occurs when rods, bearings, and pistons come from three different vendors with three different interpretations of "standard."
Oversize Grades, Prior Rebuilds, and the Engine Serial That Changes Everything
Before ordering, the crankshaft journal must be measured with a micrometer — not assumed from the engine model plate. A crankshaft reground to 0.25 mm oversize needs a connecting rod and bearing set matched to that exact dimension. The N844, N844L, and N844LT-C variants share a block architecture but differ in internal clearances and, in some production runs, in rod bolt thread pitch. Confirming the engine serial number against the build tag is the only reliable way to lock in the correct variant. [NEED_CITE: Shibaura N844 series engine variant identification procedures]
What the Specifications Actually Mean for Your Rebuild
The 42CrMo alloy steel used in this rod is a medium-carbon chromium-molybdenum grade chosen for its fatigue strength under the cyclic loading a 2.2L diesel produces at rated RPM. Heat treatment held to HRC 28–32 keeps the big-end cap rigid enough to maintain bore roundness without becoming brittle enough to crack under shock loads from sudden governor response. The big-end bore tolerance of ±0.005 mm is the figure that determines oil film thickness between bearing shell and journal — too tight and the oil wedge starves, too loose and knock develops within the first hundred hours. Micro-finished bearing surfaces reduce the initial run-in wear that generates particulate contamination in the first critical operating hours. Bolt torque at 55 ± 3 N·m must be respected precisely: under-torque allows cap walk, over-torque stretches the bolt past its elastic limit and sets up a fatigue fracture that will not show until the rod is under load.
The Hidden Cost of Skipping the Root-Cause Check
When a connecting rod or its bearing shell fails early, the instinct is to blame the part. In my experience pulling apart N844 blocks, repeat failures almost always trace back to something upstream — a worn oil pump that cannot maintain gallery pressure at idle, a blocked oil gallery feeding that specific journal, or a pressure relief valve stuck open. Replacing the rod without diagnosing the lubrication fault simply resets the clock on the same failure. The new connecting rod will last until the oil film fails again, which may be sooner than the first time because the journal surface is now scored. [NEED_CITE: lubrication system root cause analysis in small diesel engine failures]
Why Rebuild Shops Source This Rod Through Our Engine Systems Desk
Our own production lines and qualified sourced supply carry identical QC and warranty terms, so whether your order is one rod for a single-cylinder repair or a matched set of four for a complete overhaul, the inspection standard is the same. Eight product categories sit under one account, meaning the rod, bearings, piston assemblies, gaskets, and oil pump all consolidate into one consignment with one set of shipping documents. Minimum order is one piece — no blocking an emergency single-cylinder repair behind a volume threshold. Our technical team confirms oversize grade and engine serial variant before the order ships, catching the mismatches that happen when cross-reference tables are copied without verification. Sample supply is available for fitment confirmation before you commit to bulk quantities for your shop's stock.
Documentation & Verification
- Commercial invoice listing each oversize grade and quantity per rod set
- Cross-reference sheet mapping 115026330, SBA115026330, and 87763364 (reference only)
- Dimensional inspection record covering big-end bore diameter and hardness reading
- Quality inspection photographs showing micro-finished bearing surface condition
- Warranty terms document specifying coverage period for manufacturing defects
- HS code and customs documentation support for international engine parts shipments
Installation & Rebuild Sequence
- Verify crankshaft journal diameter with micrometer before selecting oversize grade for the connecting rod
- Clean all oil galleries and confirm flow to each journal bearing feed point before assembly
- Install con rod bearings with correct tab alignment and check oil film clearance with plastigauge
- Torque rod bolts to 55 ± 3 N·m in the sequence specified for the N844 service manual
- Rotate crankshaft by hand after each rod installation to confirm zero binding
- Run initial break-in at varying load for the first operating hours to seat bearing surfaces
Request Your Matched Rebuild Quote
Provide your engine model, serial number, and any known crankshaft regrind history so we can confirm the correct oversize grade and variant for your Connecting Rod for Shibaura N844 engine rebuild. If you are quoting a full overhaul, share the complete component list and we will match it with the corresponding bearings, pistons, gaskets, and lubrication components in a single consolidated shipment.
Frequently Asked Questions
Q: What does a complete N844 overhaul kit include, and is the connecting rod part of it?
A: A typical overhaul kit covers gaskets, main bearings, piston rings, and seals. The connecting rod is often excluded or supplied only in standard grade. We match the rod to your measured crankshaft journal dimension and ship it alongside the correct bearing shells and piston assemblies so nothing arrives mismatched.
Q: My crankshaft was reground last time — how do I pick the right oversize grade?
A: Measure each journal with a micrometer and compare against the oversize chart for STD, 0.25, and 0.50 grades. Previous regrind work is not always documented on the engine plate. Share your measurements with our technical team and we will match the connecting rod and bearing set accordingly.
Q: Are connecting rods identical across N844, N844L, and N844LT-C variants?
A: The block architecture is shared, but internal clearances and bolt specifications can differ across production runs. Confirm your engine serial number and variant code so we cross-check against the correct build record before dispatch.
Q: The last connecting rod failed early — what else should I check before reassembly?
A: Inspect the oil pump for wear, flush all oil galleries, and verify pressure relief valve operation. Repeat rod or bearing failure is usually a lubrication system fault, not a parts quality issue. Correcting the upstream cause prevents the new rod from suffering the same early failure.
Q: How do I confirm the exact engine serial when the nameplate is worn or painted over?
A: Send a photograph of any remaining casting numbers on the block, along with the machine model and approximate year. Our technical team can cross-reference against build records to identify the correct N844 variant and the connecting rod specification it requires.
