Kohler 25 351 11-S Lifter Kit – Replacement Lawn & Garden Equipment Engine Valve Train Component

Part Number: 25 351 11-S
Category: Kohler Lawn & Garden Equipment Engine Replacement Parts
Type: Replacement Hydraulic Valve Lifter Kit with Camshaft Lubricant

The Kohler 25 351 11-S Lifter Kit is a genuine OEM engine valve train replacement kit designed for compatible Kohler Command Series gasoline-powered engines used in lawn and garden equipment. This hydraulic valve lifter kit includes one replacement hydraulic valve lifter and camshaft lubricant, providing essential components for servicing the engine's valve operating mechanism.

Product Specifications

• Part Number: 25 351 11-S

• Brand: Kohler

• Manufacturer: Kohler / Rehlko

• Product Type: Hydraulic Valve Lifter Kit

• Component Type: Engine Valve Train Hydraulic Lifter

• Product Series: Select Kohler Command Series Engines

• Lifter Type: Hydraulic Valve Lifter

• Kit Contents: 1 Hydraulic Valve Lifter and 1 Camshaft Lubricant

• Application: Engine Hydraulic Valve Lifter Replacement and Valve Train Maintenance

• Function: Transferring Camshaft Motion to the Push Rod and Supporting Proper Valve Operation

• System: Engine Camshaft, Hydraulic Lifter, Push Rod, and Valve Train Assembly

• Installation Location: Manufacturer-Designated Hydraulic Lifter Bore Within the Engine

• Compatible Engine Models: Select Kohler CH11, CH12.5, CH14, CH18, and CH1000 Engines

• Additional Engine Applications: Select Kohler Command CH, CV, ECH, ECV, and LH Series Engines Where Specified

• Replacement Part Numbers: Kohler 12 351 01-S, 25 351 01-S, 25 351 02-S, 25 351 04-S, 25 351 07-S, and 25 351 10-S

• Additional Reference Numbers: KH-25-351-11-S and 2535111-S

• Stens OEM Reference: 055-630

• UPC: 885612125958

• Approximate Shipping Weight: 0.20–0.25 lb

• Condition: New

Features & Benefits

• Genuine Kohler 25 351 11-S replacement hydraulic valve lifter kit

• Designed for compatible Kohler Command Series gasoline-powered engines

• Includes one hydraulic valve lifter and camshaft lubricant

• Supports proper engine valve train operation and maintenance

• Helps transfer camshaft motion through the hydraulic lifter to the push rod

• Supports correct operation of compatible engine intake and exhaust valves

• Hydraulic lifter design helps maintain appropriate valve train clearance during operation

• Helps compensate for normal thermal expansion within the valve train

• Provides a replacement for worn, damaged, collapsed, sticking, or malfunctioning hydraulic lifters

• Helps address excessive valve train noise caused by defective lifter components

• Supports proper engine valve timing and operation when correctly installed

• Designed for integration with appropriately matched Kohler camshaft and push rod assemblies

• Includes camshaft lubricant for the specified installation procedure

• Supports proper lubrication of the lifter contact surface during assembly

• Helps restore the engine's intended hydraulic valve lifter configuration

• Replaces several earlier Kohler hydraulic lifter part numbers

• Compatible with select Kohler Command CH11, CH12.5, CH14, CH18, and CH1000 engines

• Additional Kohler Command engine configurations may use this replacement kit where specified

• Helps maintain dependable engine operation and consistent valve train performance

• Suitable for engine valve train repairs and internal engine servicing

• Supports preventive engine maintenance when lifter replacement is required

• Practical replacement component for residential and commercial lawn equipment repairs

• Supports continued engine serviceability without replacing the complete engine assembly

• Genuine OEM construction provides manufacturer-specified replacement compatibility

Applications

• Compatible Kohler Command Series gasoline-powered engines

• Kohler CH11 hydraulic valve lifter replacement

• Kohler CH12.5 engine valve train servicing

• Kohler CH14 hydraulic lifter maintenance

• Kohler CH18 engine valve lifter replacement

• Kohler CH1000 engine valve train repairs

• Select Kohler CH18–CH25 Command engines where compatible

• Select Kohler CH620–CH980 engines where compatible

• Select Kohler CV620–CV980 engines where compatible

• Select Kohler ECH630–ECH749 engines where compatible

• Select Kohler ECV630–ECV980 engines where compatible

• Select Kohler LH685–LH775 engines where compatible

• Engine hydraulic valve lifter replacement

• Engine camshaft and lifter assembly maintenance

• Engine push rod and valve train servicing

• Riding lawn mower engine repairs

• Zero-turn mower engine valve train maintenance

• Lawn tractor engine servicing

• Garden tractor engine repairs

• Commercial mowing equipment engine maintenance

• Replacement of worn or malfunctioning hydraulic lifters

• Engine valve train noise diagnosis and repair

• Internal combustion engine maintenance

• Residential lawn and garden equipment servicing

• Professional landscaping equipment engine repairs

• Equipment specifying Kohler 25 351 11-S hydraulic lifter kits

Important Notes

• Verify Kohler part number 25 351 11-S before ordering

• This listing is for a hydraulic valve lifter kit, not a complete camshaft, cylinder head, valve train, or engine rebuild kit

• The replacement kit is listed as including one hydraulic valve lifter and camshaft lubricant

• Confirm current manufacturer packaging and included quantities before purchasing

• This part is identified as a genuine Kohler OEM replacement component

• Confirm compatibility with your specific Kohler engine model and specification number

• Verify the engine identification information before ordering

• Do not assume compatibility with every Kohler Command Series engine

• Different Kohler engine configurations may require different hydraulic lifters or valve train components

• Manufacturer and distributor parts catalogs identify compatible applications within select Kohler Command engine families

• Confirm that your engine specifically requires Kohler 25 351 11-S

• The equipment model alone may not identify the correct replacement hydraulic lifter

• Check the engine manufacturer's illustrated parts diagram for the appropriate valve train components

• Verify the correct hydraulic lifter part number, dimensions, and installation configuration

• Similar-looking hydraulic lifters may differ in internal design, dimensions, oiling characteristics, or intended engine applications

• Do not substitute an incorrectly specified hydraulic valve lifter

• This kit replaces several earlier Kohler hydraulic lifter part numbers, including 12 351 01-S, 25 351 01-S, 25 351 02-S, 25 351 04-S, 25 351 07-S, and 25 351 10-S

• Verify that any superseded part number is approved for your specific engine configuration

• Cross-reference numbers do not guarantee compatibility with every engine using an earlier component

• Confirm compatibility with the existing camshaft, push rods, rocker arms, and valve train assembly

• Verify whether the engine requires replacement of additional hydraulic lifters or related components

• The included quantity should not be assumed sufficient for servicing every lifter in a multi-cylinder engine

• Do not assume push rods, rocker arms, camshafts, valves, gaskets, or additional hardware are included

• Follow the engine manufacturer's recommended hydraulic lifter replacement and valve train servicing procedures

• Hydraulic lifter installation may require partial engine disassembly

• Proper engine service procedures and specialized mechanical knowledge may be necessary

• Diagnose the valve train before replacing hydraulic lifter components

• Excessive valve train noise may result from worn lifters, inadequate oil pressure, damaged push rods, worn rocker arms, or other engine issues

• Inspect the existing hydraulic lifters for wear, damage, sticking, or abnormal operation

• Check the lifter contact surfaces for scoring, pitting, or excessive wear

• Inspect the camshaft lobes and mating surfaces for damage before installing replacement lifters

• A damaged camshaft may require additional repair or replacement

• Inspect the push rods for bending, excessive wear, or damaged contact surfaces

• Check the rocker arms and associated valve train components for abnormal wear

• Verify that the engine lubrication system is functioning correctly before completing repairs

• Low oil pressure or contaminated engine oil may contribute to hydraulic lifter problems

• Follow the engine manufacturer's recommended oil type, viscosity, and maintenance schedule

• Shut off the engine and allow it to cool sufficiently before performing internal engine repairs

• Remove the ignition key and secure the equipment against unintended starting

• Disconnect the battery and ignition connections when instructed by the manufacturer

• Wear appropriate protective gloves and eye protection during engine disassembly and servicing

• Clean the exterior engine components before opening internal engine assemblies

• Prevent dirt, debris, and foreign materials from entering the engine during maintenance

• Carefully remove existing hydraulic lifters according to manufacturer instructions

• Avoid damaging the engine lifter bores or surrounding internal components

• Inspect the lifter bores for scoring, excessive wear, or contamination

• Confirm that the replacement lifter matches the original component and installation configuration

• Apply the specified Kohler camshaft lubricant to the appropriate lifter contact surfaces before installation

• Follow the manufacturer's lubrication recommendations for the lifter body and associated components

• Kohler service information specifies that excess oil may need to be bled from hydraulic lifters before installation

• Proper hydraulic lifter bleeding is important to help prevent bent push rods or damaged rocker arms

• Do not install a hydraulic lifter containing excessive trapped oil without following the applicable manufacturer procedure

• Do not force installation if the lifter does not fit correctly within the designated bore

• Verify that the replacement lifter moves properly within the manufacturer-specified installation location

• Ensure the push rods are correctly seated in the hydraulic lifters and rocker arm assemblies

• Confirm that all valve train components are properly positioned before completing engine reassembly

• Follow the engine manufacturer's specified tightening sequences and torque requirements

• Do not overtighten or undertighten associated engine fasteners

• Replace any removed gaskets or sealing components when required by the engine manufacturer

• Ensure the engine lubrication passages remain clean and unobstructed

• Refill or verify the engine oil level before restarting the engine

• Follow the manufacturer's recommended post-repair inspection and engine startup procedures

• Inspect the repaired engine for abnormal valve train noise, oil leakage, or irregular operation

• Stop engine operation if unusual mechanical noise or other signs of improper valve train operation occur

• A replacement hydraulic lifter kit may not resolve engine problems caused by damaged camshafts, worn rocker arms, bent push rods, inadequate lubrication, or unrelated mechanical failures

• Follow all Kohler engine maintenance, repair, and safety recommendations

• Confirm current manufacturer specifications, engine compatibility, replacement part references, and included quantity before ordering