Honda K24Z1 Engine

The Honda K24Z1 is a reliable 2.4L DOHC i-VTEC engine built for efficiency, durability, and everyday performance. Equipped with VTC and a timing chain, it offers smooth power delivery, low maintenance requirements, and long service life, making it one of Honda's most dependable naturally aspirated four-cylinder engines.

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Part Name OEM Number Remarks
Complete Assembled Cylinder Head (With Camshafts, Valves, Rockers) 10003-R40-A00 Full assembled head exclusive for K24Z1, casting mark R40
Bare Cylinder Head Shell (No Valve Train) 11000-R40-A00 Empty head housing for remanufacturing overhaul
Intake Camshaft (High-lift i-VTEC) 14110-R40-A00 Unique high-lift cam for K24Z1 Civic Si / CR-V
Exhaust Camshaft 14210-R40-A00 Standard exhaust camshaft, interchangeable with K24Z3
Single Intake Valve 14711-PNA-000 Standard size intake valve, universal K-series
Single Exhaust Valve 14721-PNA-000 Standard size exhaust valve, universal K-series
Universal Valve Stem Oil Seal (Intake & Exhaust) 12210-PPA-003 Single seal for each valve
Inner & Outer Valve Spring Assembly 14751-R40-A00 Reinforced high-rev spring set for K24Z1
Full Torque-to-Yield Cylinder Head Bolt Kit (10 Pcs) 90004-R40-A00 Special stretch head bolts, one-time use only
Valve Guide Sleeve 12231-PPA-000 Replacement valve guide for engine rebuild
Part Name OEM Number Remarks
Complete Forged Crankshaft Assembly 13310-R40-A00 K24Z1 exclusive crankshaft, cannot interchange old K24A series
Standard Main Bearing Set (STD, 5 pairs upper & lower) 13315-PNA-003 Complete crankshaft main bearing kit
Crankshaft Thrust Washer Set 13316-PNA-000 Axial positioning shims for crankshaft
Single Complete Connecting Rod 13210-R40-A00 4 rods total for 4 cylinders, reinforced forged rod
Standard Connecting Rod Bearing (STD single pair) 13215-PNA-003 Big end bearing for connecting rod
Connecting Rod Bolt (Single fastener) 90014-R40-A00 High tensile rod cap bolt
STD Complete Piston (With wrist pin & circlip) 13010-R40-A00 Dome-top high-compression piston for K24Z1
Single Cylinder Piston Ring Set (3 rings) 13030-R40-A00 2 compression rings + 1 oil control ring
Piston Wrist Pin 13041-PPA-000 Pin connecting piston and connecting rod
Part Name OEM Number Remarks
Full Engine Overhaul Gasket Kit (All upper & lower seals) 06110-R40-A00 Contains oil pan gasket, front/rear crankshaft seals & all small gaskets
Valve Grind Top Gasket Set (Cylinder head only) 06120-R40-A00 Only for head disassembly, excludes oil pan gasket
MLS Multi-Layer Steel Cylinder Head Gasket 12251-R40-A01 Reinforced metal head gasket for high-rev engine
Rubber Valve Cover Gasket 12341-R40-A00 Factory OEM valve cover sealing gasket
Integrated Intake Manifold Gasket Set 17105-R40-A00 Full gasket set for single-piece intake manifold
Exhaust Manifold Gasket 18115-R40-A00 Single exhaust manifold sealing gasket
Front Crankshaft Oil Seal (Timing Chain Side) 91212-PPA-003 Oil seal at timing gear end
Rear Main Crankshaft Oil Seal (Flywheel Transmission Side) 91214-PPA-003 Large rear crankshaft oil seal
Aluminum Oil Pan Gasket 11251-PPA-000 Rubber seal gasket for aluminum oil pan
Part Name OEM Number Remarks
Primary Timing Chain 14401-PNA-004 176-link silent timing chain for K24Z1
Hydraulic Timing Chain Tensioner 14510-PPA-003 Automatic hydraulic chain adjuster
Timing Chain Guide & Damper Rail Kit 14530-PPA-000 Upper & lower sliding timing guides
Complete Engine Oil Pump Assembly 15100-RAA-A02 Front-mounted oil pump with pressure regulator valve
Oil Pump Drive Small Chain 15131-PPA-000 Short chain driving oil pump gear
i-VTEC OCV Oil Control Solenoid Valve 15830-R40-A01 Variable valve timing hydraulic control valve
K24Z1 is factory fitted for 2008–2011 Honda CR-V RE series and 2009–2011 Civic Si FA5/FG2 for North American & Southeast export markets.