Cummins Cylinder Liner G5530375 5478894 for Dongfeng Truck Excavator
Product name: Cylinder liner/Cylinder sleeve
OE No.: G5530375 5478894
Single package size: 30*15*15cm
Single gross weight: 3.5 kg
Place of Origin: Shaanxi,China
Application: Trucks Dongfeng, Construction Excavators, Industrial Genset
Quality: Original OEM/Aftermarket Replacement
Business Type: Manufacturer/Factory
Sample Order: Acceptable
Lead Time:3-5 Days
Trade Term: EXW/FCA/FOB/CFR/CIF/DAP/DDU/DDP
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction

5478894 (also written C5478894 / P5478894) is a Cummins/Dongfeng-Cummins genuine cylinder liner (cylinder sleeve) for the 8.3–8.9 L C-series / L-series six-cylinder diesel family.
It is a critical internal engine block component that forms a durable, heat-resistant barrier to protect cylinder walls and maintain optimal combustion compression in large mid-range diesel engine.
| Product Name | Cylinder Liner/ Cylinder Sleeve |
| OE no | C5478894 /5478894 /P5478894, 5529128 |
| Brand | Cummins/Onode |
| Suitable Engine |
Cummins C8.3 / ISC8.3 / ISL8.9 / ISL9 / L8.9 / L9 / QSL8.9 family: 6C8.3, 6CT, 6CT8.3, 6L, 6L8.3 ISC CM2150, ISL CM2150, ISL8.9, ISL9 CM2150 SN L8.9, L9 CM2670 (L128B, L136C) QSL8.9 CM2150 L141
|
| Application Model |
Trucks: Dongfeng Tianlong/Tianjin/Kinland with C280–C325 / L9; heavy-duty 8.3–8.9 L Cummins powered rigs Construction: Excavators, wheel loaders, dozers, compactors (e.g. YTQH450B piling/compactor on QSL8.9-C325) Industrial / Genset: 6LTAA8.9 pump sets, standby gensets, compressor drives Marine: ISC/ISL/QSL8.9 propulsion and auxiliary
|
| Type | Wet cylinder liner / removable sleeve, press-fit upper seat, O-ring sealed lower flange |
| Material | Centrifugally cast alloy iron / high-grade ductile iron, honed bore |
| Bore | Matches 114 mm (4.49 in) class bore of 6C8.3 / ISC8.3 / ISL8.9 / L8.9 / L9 |
| Cooling | Wet jacket, saddle-jet piston cooling compatible (C-series block style) |
Key Features
Genuine Cummins casting
controlled bore hardness, plateau-honed finish, consistent liner protrusion (deck height) for correct head gasket clamp load.
Wet-sleeve design
Coolant surrounds the barrel; lower O-ring grooves (use 5529128 kit) stop jacket water entering the crankcase.
Superior Anti-Cavitation Guard
Built to withstand harsh coolant flow vibrations, significantly reducing wet sleeve pitting or corrosion over extended service intervals.
Flawless Compression Sealing
Engineered under exact OEM tolerances to work in harmony with pistons and head gaskets, securing maximum engine horsepower and reduced exhaust emissions.
We look forward to collaborating with you and are committed to doing our utmost to ensure a successful and satisfying partnership. Please don't hesitate to reach out for more information or to initiate the cooperation process.
Our address
Phone Number
+86 18192615201

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Q 1. Is 5478894 the same as C5478894 / G5478894?
A: Yes. The bare 7-digit 5478894 is the Cummins base number; C / G / P prefixes are seller-style "Cummins / Genuine / Pattern" tags. Same liner, same bore/flange/O-ring grooves - provided the listing still targets 6CT / C8.3 / ISL8.9 / L8.9 / L9.
Q 2. Which engines does 5478894 cylinder liner really fit?
A: Primary: 6CT8.3, 6C8.3, ISC8.3, ISL8.9, L8.9, L9 (CM2150 / CM2670).
Do not use it for B3.9 / B5.9 / 6BT / ISB / QSB5.9 - those are a different liner family (smaller bore, different flange step). Some Chinese marketplace pages loosely tag "DCEC B5.9" on 5478894; that is a catalog error.
Q 3. What O-rings / seals go with 5478894 cylinder liner?
A: The common lower-flange O-ring kit quoted alongside 5478894 is 5529128 (Cummins water-seal ring set for C/L-series wet liners). Always replace O-rings on liner change - never reuse old ones, and lube with vegetable oil or clean engine oil per Cummins manual, not RTV.
Q 4. Change 5478894 single cyliner liner or full set?
A: 5478894 is sold each, Moq 1.
But in practice, if one liner is worn/scored enough to open the engine, the other 5 bores are usually at similar hours - most shops fit a set of 6 with pistons/rings at the same time. Mixing one new liner with 5 tired ones gives uneven compression and can crack the fresh liner from neighboring bore wash.
Q 5. Can I just drop 5478894 cyliner liner in with a rubber mallet?
A: No. Use a liner installation press tool (Cummins-style bridge + force screw). Impact gun on the force screw, or hammering the flange, cocks the liner, pinches O-rings, and gives false protrusion. Seat it square, then measure.
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