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{"title":"TOB Cum mins X12 Head Gasket Kit 4376123 for CAT 336 340 Excavator","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/ee\/709be3b2d6d94e95a7875f5e6515-200x200-1\/tob_cum_mins_x12_head_gasket_kit_4376123_for_cat_336_340_excavator.jpg","attrs":{"OE Number":"4376123","Model Number":"Cum mins X12","Warranty":"100% pre-test before delivery, 6 months warranty for quality assurance, meets ISO 9001\/TS 16949 certification standards","Supply Ability":"10000PCS\/ WEEK"}}
{"title":"Cum mins M11-0 Engine Overhaul Kit OE 4025297 for Vol vo EC360\/EC460 Excavator","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/60\/b87cd7cbdaa63994f7fd1d9dacf4-200x200-1\/cum_mins_m11_0_engine_overhaul_kit_oe_4025297_for_vol_vo_ec360_2fec460_excavator_for_cum_mins_engine_parts.jpg","attrs":{"Price":"$110-$134","Minimum Order Quantity":"1 SET","Engine Model Fitment":"Cum mins M11-0","Certification":"ISO 9001"}}
{"title":"Cum mins 6CT Engine gasket Kit OE 4025271 for Hyundai R300LC-5\/R305 Excavator","imgUrl":"https:\/\/img.chinax.com\/nimg\/87\/af\/9d6e028aee750e915833dc42a8fb-200x200-1\/cum_mins_6ct_engine_gasket_kit_oe_4025271_for_hyundai_r300lc_5_2fr305_excavator_for_cum_mins_engine_parts.jpg","attrs":{"Brand Name":"For Cum mins","Quality Grade":"Premium Aftermarket (OEM-Equivalent)","Model Number":"6CT","Place of Origin":"CHINA"}}
{"title":"Cum mins KTA19 K1 Engine Full Gasket Kit OE 3803798 for Komatsu PC1250\/PC1100","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/16\/df8f6f7eefae70da626b6d543f4b-200x200-1\/cum_mins_kta19_k1_engine_full_gasket_kit_oe_3803798_for_komatsu_pc1250_2fpc1100_excavator_for_cum_mins_engine_part.jpg","attrs":{"Brand Name":"For Cum mins","Engine Model Fitment":"Cum mins KTA19 K1","Warranty Period":"6 Months (Manufacturer Warranty)","Application Scope":"Commercial Vehicles, Construction Machinery, Industrial Equipment"}}
{"title":"Cum mins KTA19 K2 LOWER Gasket Kit OE 3803798 for Komatsu PC1250-7\/PC1100","imgUrl":"https:\/\/img.chinax.com\/nimg\/e5\/7e\/13e95e413e3d7ae41a1e29d37366-200x200-1\/cum_mins_kta19_k2_lower_gasket_kit_oe_3803798_for_komatsu_pc1250_7_2fpc1100_excavator_for_cum_mins_engine_parts.jpg","attrs":{"Kit Inclusions":"Gaskets, Pistons, Bearings, Valves, Oil Seals & Critical Wearing Parts","Engine Model Fitment":"Cum mins KTA19 K2 LOWER","Price":"$38-$46","Payment Terms":"T\/T,,D\/A"}}
{"title":"Cum mins M11-N Engine Full Gasket Kit OE 4022500 for Komatsu PC400-6\/PC450","imgUrl":"https:\/\/img.chinax.com\/nimg\/9d\/03\/304cf51fbfe34e28209951b2ba4b-200x200-1\/cum_mins_m11_n_engine_full_gasket_kit_oe_4022500_for_komatsu_pc400_6_2fpc450_excavator_for_cum_mins_engine_parts.jpg","attrs":{"Brand Name":"For Cum mins","Packaging Details":"Carton Packing, Wooden Case, Plastic Pallet, Paper Pallet.","Delivery Time":"Ships in 24h (1-7 days max)","Warranty Period":"6 Months (Manufacturer Warranty)"}}
Cum mins QSF3.8 Diesel Engine Full Gasket Kit | OEM 3803041 3803039 5281441 | for Cum mins Engine Parts
Rebuild or overhaul your excavator, compact loader, or industrial equipment with this comprehensive full gasket kit for the Cum mins QSF3.8 diesel engine. This complete gasket set includes every sealing component necessary for a top-end or full engine rebuild, ensuring proper compression, leak-free operation, and long-term durability.
Technical Specifications
Parameter
Details
Engine Model
Cum mins QSF3.8, ISF3.8, QSF3.8 CM2350 F107, QSF3.8 Tier 4 Final / Stage V
Excavator / Construction Machinery / Industrial Equipment
Cylinder Head Gasket Material
Multi-Layer Steel (MLS) / Graphite Composite
Seal Material
High-Temperature Viton / Nitrile Rubber
Condition
Brand New
Warranty
6 Months
Kit Contents
Typical components included - may vary by engine configuration
Component
OEM Part Reference
Cylinder Head Gasket
OEM Specification
Oil Pan Gasket
5281441
Valve Cover Gasket
5613916L
Intake Manifold Gasket
4983020
Exhaust Manifold Gasket
OEM Specification
Front Crankshaft Oil Seal
3695722F
Rear Crankshaft Oil Seal
OEM Specification
Fuel Injector O-Rings
OEM Specification
Turbocharger Gaskets
OEM Specification
EGR Cooler Gaskets
OEM Specification
Water Pump Gasket
OEM Specification
Thermostat Housing Gasket
OEM Specification
Rocker Cover Gaskets
OEM Specification
Pushrod Cover Gaskets
OEM Specification
O-Ring Plugs
5294119
D-Ring Seals
4957785
This kit includes all necessary seals, gaskets, and O-rings for a complete engine overhaul. Individual components may vary based on engine build specification.
Compatible Equipment Models
Equipment Type
Applicable Models
Excavators
JCB JS130, JS160, JS200 (with Cum mins QSF3.8 engine)
Excavators
Komatsu PC138US-11, PC138USLC-11
Excavators
Hyundai R140LC-9S, R160LC-9S
Compact Track Loaders
Case TV380, TV450
Skid Steer Loaders
Case SR270, SV340, TR340
Wheel Loaders
JCB 407, 409, 411
Backhoe Loaders
JCB 3CX, 4CX (select Tier 4 models)
Other Applications
Generators, industrial pumps, and agricultural machinery powered by Cum mins QSF3.8 / ISF3.8 diesel engines
Product Features & Engineering Advantages
Complete Engine Overhaul Solution - Includes every seal and gasket needed for a complete engine rebuild, eliminating the need to source individual components separately
OEM-Spec Cylinder Head Gasket - Manufactured to original equipment specifications with MLS or high-grade graphite composite materials for excellent heat resistance and durability
Precision-Fit Oil Pan Gasket - Designed specifically for the QSF3.8's oil pan configuration to prevent oil leaks that can lead to engine damage
High-Temperature Seal Materials - All seals exposed to high heat are manufactured from high-temperature materials including Viton and multi-layer steel
Front Crankshaft Seal Included - Critical component that prevents oil leakage from the timing gear case, specifically designed for the QSF3.8's front crankshaft journal
Complete Valve Train Sealing - Includes valve cover gaskets designed to withstand the pressures and temperatures of the valvetrain environment
Intake and Exhaust Manifold Gaskets - Features intake and exhaust manifold gaskets to ensure proper air-fuel mixture delivery and prevent exhaust gas leaks
All Necessary O-Rings and Seals - Contains all required O-rings including sump plug O-rings and D-ring seals for various engine plugs and sensors
Quality Assurance
100% Complete - Every gasket and seal required for a full engine overhaul included
OEM Standard - Manufactured to meet or exceed original Cum mins specifications in ISO-certified facilities
Warranty - 6-month warranty against manufacturing defects
Global Shipping - Fast DHL, FedEx, UPS shipping available from multiple warehouses
Expert Support - Need help identifying the correct kit? Send us your engine serial number (ESN)
Installation Guidelines
The cylinder head gasket is a critical component that seals the combustion chamber between the engine block and cylinder head. When installing a new gasket kit on a Cum mins QSF3.8 engine, follow these critical guidelines:
Always verify the correct gasket kit based on engine serial number
The oil pan gasket (5281441) requires proper alignment during installation
Cylinder head bolts must be replaced according to factory specifications
Clean all mating surfaces thoroughly before installation
Follow factory torque specifications and tightening sequences
Professional installation is recommended due to the precision required
Warning: Improper installation can lead to coolant leaks, oil leaks, compression loss, and severe engine damage. Always verify proper torque specifications and tightening sequences.
