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Sleeve injector valve is a critical core fuel injection component for marine diesel engines. Made of high-quality wear-resistant and corrosion-resistant materials, it achieves fine fuel atomization and accurate fuel injection control inside the combustion chamber. It features precise dimensional accuracy, stable structural performance and excellent fatigue resistance, suitable for routine servicing, shipyard overhaul and fault repair under marine harsh working conditions. A well-matched sleeve injector valve stabilizes engine combustion efficiency, avoids incomplete combustion and power drop, reduces component failure risks and equipment downtime, and ensures efficient and reliable operation of marine engine units.
Please provide equipment model, specifications and part number before ordering to confirm compatibility.
T240 Sleeve Injector Valve | Marine Equipment Spare Parts
The T240 Sleeve Injector Valve is a high-precision fuel injection sleeve component specially designed for YANMAR T240 series marine diesel engines. As the core matching part inside the fuel injector unit, this sleeve injector valve cooperates with needle assembly to control high-pressure fuel sealing, opening timing and fuel atomization. It maintains precise clearance and stable sealing under high fuel pressure, ensures accurate injection start and stop, optimizes fuel atomization quality and combustion efficiency inside cylinder. It reduces carbon accumulation and exhaust emission under variable load navigation conditions, supporting steady power output for marine vessels. Worn sleeve inner bore, sealing surface scratch or clearance oversize of sleeve injector valve will cause fuel leakage, poor atomization, unstable injection pressure and cylinder incomplete combustion. Replacing with standard T240 Sleeve Injector Valve restores fuel injection accuracy and guarantees reliable operation of YANMAR T240 marine diesel engines.
Working under harsh marine operating conditions including long-time full-load continuous navigation, cyclic high fuel pressure, high cylinder temperature and cabin salt-fog corrosion, the sleeve injector valve will gradually suffer inner bore abrasion, sealing surface wear and carbon deposit after thousands of operating hours. Damaged sleeve injector valve leads to fuel dripping, power reduction and increased fuel consumption. Regular inspection and replacement of sleeve injector valve are essential routine maintenance and dry-dock overhaul items for YANMAR T240 marine diesel engines.
This dedicated T240 sleeve injector valve adopts optimized high-hardness alloy steel material with uniform internal texture and outstanding wear & erosion resistance. Precision honing processing on inner bore ensures ultra-smooth surface and consistent fit clearance with needle, achieving reliable sealing and stable fuel control under repeated high pressure impact. It can keep stable geometric accuracy and sealing performance under long-cycle high-pressure fuel impact and thermal fluctuation, effectively avoiding fuel leakage and bad atomization caused by inner bore wear.
With excellent high-temperature fatigue resistance and marine salt fog corrosion resistance, the sleeve injector valve adapts to complex and variable ship operating conditions including frequent start-stop, variable load operation and humid salt-fog cabin environment. It effectively reduces fuel injector system failure rate, lowers daily maintenance and fuel consumption costs, and greatly improves the operational safety, stability and service cycle of YANMAR T240 marine diesel engines.
The T240 Sleeve Injector Valve is manufactured from premium wear-resistant alloy steel material, specially customized for high-pressure fuel injection and high-temperature combustion environment of YANMAR T240 marine diesel engine. Integral forging and multiple heat treatment processes eliminate internal porosity and structural defects. Strict stress relief treatment removes residual machining stress to prevent deformation under long-term thermal cycling. Key inner bore adopts ultra-precision honing and sealing surface lapping treatment to strictly control inner diameter tolerance, surface roughness and matching clearance. The whole production process fully complies with YANMAR OEM technical standards and universal marine diesel industry manufacturing specifications.
Quantified Marine-Grade Performance Parameters
Parameter | Specification | Test & Implementation Standard |
Core Material | High hardness wear-resistant alloy steel | Raw material spectrum component inspection |
Surface Treatment | Precision honing, sealing surface lapping | Inner bore roughness & matching clearance inspection |
Dimensional Tolerance | OEM-level inner bore & outer dimension tolerance | CMM full-dimensional precision detection |
Mechanical Performance | High pressure resistance, anti-wear, anti-erosion | High pressure sealing & cycle fatigue test |
Working Stability | High temperature resistant, anti-carbon deposit | High temperature thermal cycle simulation test |
Service Feature | Precise fit, stable fuel sealing & injection control | Fuel injection bench matching test |
Compliance Standard | Universal marine industrial manufacturing specifications | YANMAR OEM & marine diesel industry norms |
All T240 Sleeve Injector Valves are manufactured strictly in accordance with YANMAR OEM engineering drawings and marine engine fuel injector precision component standards. Every finished sleeve undergoes raw material verification, heat treatment calibration, inner bore honing and sealing surface finishing. Key inner bore size, roundness, surface roughness and matching clearance are fully controlled to ensure perfect matching with injector needle and nozzle assembly.
Each sleeve injector valve passes strict pre-delivery full inspection, including full dimensional calibration, surface defect screening, high pressure sealing test and assembly matching test. All technical parameters completely match original equipment standards, supporting direct drop-in replacement without secondary processing, effectively improving fuel injection performance and post-overhaul operational stability.
MAIN ENGINE | MAN B&W | S26MC,L/S35MC,L/S42MC,L/S50MC,L/S60MC,L/S70MC,L/S80MC,L/S90MC,S46MC-C,S50MC-C,S60MC-C,S70MC-C,S80MC-C,S90MC-C,K90MC-C,K98MC-C,K/L45GF(CA),55GF(CA),67GF(CA),80GF(CA),90GF(CA) |
WARTSILA | 6L20,9L20,8L32,R22,R32,L20,L32 | |
PIELSTICK | PC2-2,PC2-5,PC2-5L,PC2-5V,PC2-6,PA4,PA5,PA6 | |
HANSHIN | EL30-44,ELS-35,44,LH-28G,LU24-54,LUN28AR(G),LUS24-58,LF46-58 | |
NIIGATA | 16HS,16X,18CX,19HX,20AX,25BX,25CX,26AFTE,26KGHS,28AFTE,28BX,28KGHS,31EZ,31X,32CLX,34AFTE | |
SULZER | RTA38,RTA48,RTA52,RTA58,RTA62,RTA68,RTA72,RTA76,RTA84,RL(A/B)56,RL(A/B)66,RL(A/B)76, RL(A/B)90,RND68,RND76 | |
AKASAKA | A31,A34,A38,A41,A45,AH25,AH27,AH28,AH30,AH38,AH40,K28,K31,DM28FD,DM38FD,DM40FD,DM51SS | |
MITSUBISHI | UEC33LSE,UEC37LA,UEC45LA,UEC50LS,UEC52LA,UEC52LS,UEC60LS,UET45/75C,UET45/80D, UET52/90D,UET52/105H | |
AUX.ENGINE | MITSUBISHI | S6A,S6B,S6R,S6N,S16N,S16R,S12R,SA2 |
MAN B&W | 16/24,20/27,21/31,23/30,25/33,28/32,32/40,48/60,58/64 | |
YANMAR | HAL,KL,KDL,KFL,RAL,MAL,S165,S185,M200,M220,T220,T240,T260,Z280,N165,N18,N21,N165,N260,N280, N330,NY16,EY18,EY22,EY26,4CHL,6CHL | |
DAIHATSU | DK20,DK26,DK28,DK32,DL16,DL19,DL20,DL22,DL24,DL26,DL28,DL32,DS18,DS19,DS22,DS26,DS28,DS32, DS40,PK14,PK16,PL24,PL26,PS18,PS20,PS22,PS26,PS30 |
We supply full-series matching spare parts for YANMAR T240 engine fuel injector overhaul, including injector needle, nozzle, injector spring, sealing ring, injector nut and complete fuel injector overhaul kits, providing one-stop procurement solutions for shipyards, shipping companies and marine engine maintenance suppliers.
Each batch of T240 Sleeve Injector Valves undergoes full-process professional inspection and performance screening, including raw material spectrum analysis, metallographic structure detection, full dimensional calibration, high pressure tightness test and bench injection matching test. All inspection data and test records are completely archived for customer review and ship dry-dock overhaul audit.
Manufactured in strict compliance with universal marine diesel industry norms and YANMAR OEM technical specifications, this sleeve injector valve fully meets the operational demands of daily ship navigation and engine overhaul projects, serving as high-quality matching replacement parts for marine ship diesel engines.
The sleeve injector valve is a core precision matching component of YANMAR T240 engine fuel injector system. Long-term high-pressure fuel impact, high-temperature combustion and marine salt-fog corrosion will cause inner bore abrasion, sealing surface scratch and carbon accumulation. Replace the sleeve injector valve during major overhaul if inner bore wear, fuel leakage or poor atomization is detected. Installing new standard T240 Sleeve Injector Valve restores precise matching clearance, improves fuel atomization and protects cylinder liner, piston and exhaust valve from thermal damage caused by incomplete combustion.
Regular inspection of sleeve surface condition and injector sealing performance is an essential dry-dock maintenance work for YANMAR T240 marine diesel engines. Long-term continuous operation will accumulate inner bore wear and carbon deposit for injector precision components. Timely inspection and replacement can effectively avoid fuel dripping, black smoke, power drop and excessive fuel consumption, eliminating hidden operational risks and ensuring stable and safe operation of ship power equipment.
Which engine does this sleeve injector valve fit?
This sleeve injector valve is specially customized for YANMAR T240 series marine ship diesel engines, also compatible with multiple mainstream marine main and auxiliary engine models listed above. Please provide complete engine model or original part number for accurate matching confirmation.
What is the delivery time?
Standard T240 Sleeve Injector Valves are in stock with 7–10 working days fast delivery. Non-standard customized specifications support 7–15 working days production cycle.
Can you provide customized processing services?
Yes, we support OEM customization and non-standard processing according to customer drawings and samples. All customized products undergo full-dimensional inspection and performance testing before shipment.
What is your warranty policy?
12-month warranty for material and manufacturing defects. We provide professional after-sales technical support including installation guidance and assembly parameter verification.
What is the MOQ and export packaging?
MOQ is 1 unit for in-stock products, with favorable bulk discount for fleet batch orders. Standard export packaging adopts anti-rust oil treatment, moisture-proof wrapping and solid plywood crating, adapting to long-distance ocean transportation and overseas storage.
