CHOHO Engine Chain automotive timing chain kits, toothed silent chains & engine roller chains

Supply OEM and aftermarket engine timing systems manufactured by the CHOHO Engine Chain Division (Qingdao Choho Industrial Co., Ltd. / Shanghai Hantong Automobile Spares, IATF 16949): complete timing chain kits with PA66 101L nylon guides and hydraulic tensioners, CL04/CL05/CL06 toothed silent chains, oil-hole and seamless bushing chains, and engine roller chains.

CHOHO Complete Automotive Engine Timing Chain Kits (EA888, N46, M271)

The CHOHO Engine Chain Division (including subsidiary Shanghai Hantong Automobile Spares Co., Ltd. and automotive portal chohoacs.com) manufactures complete IATF 16949 timing chain kits containing timing chains, oil pump chains, precision sprockets, hydraulic tensioners and nylon guide rails.

Direct-fit timing chain kits for VW / Audi EA888, BMW N46, Mercedes-Benz M271, Geely 4G18, Honda Civic, GM, Jiangling and Kia Forte
Comprehensive catalog on chohoacs.com covering Audi, BMW, Mercedes-Benz, VW, Toyota, Nissan, Honda, Hyundai and Ford engines
Engineered service life of 3–5 years or 100,000–150,000 km with synchronized camshaft and crankshaft phasing
Matched kit components eliminate premature pitch elongation caused by worn sprockets or fatigued tensioners

CHOHO CL04 Series Engine Toothed Silent Chains (6.35 mm Pitch)

CHOHO CL04 series engine toothed (silent) chains with a 6.35 mm pitch are stamped from German cold-rolled strip steel and assembled with hard chrome-plated pins, delivering ultra-low NVH noise and high wear resistance in modern high-speed gasoline engines.

6.35 mm (1/4 inch) pitch, 2.31 mm pin diameter, multi-link stacked involute toothed guide and inner plates
Standard automotive grades: CL04F1-9 (10 kN), CL04CF2-7 (9 kN), CL04CF2-9 (12 kN), CL04CF6-9 (13 kN), CL04CF7-9 (14 kN)
Additional configurations: CL04CF10-9 (13 kN), CL04CF11-8 (11.3 kN) and auxiliary drive CL04CF14-5 (9 kN)
Surface-hardened chrome-plated pins prevent pin-bushing galling and minimize timing retardation over service life

CHOHO CL05 (8.0 mm) & CL06 (9.525 mm) Heavy-Duty Toothed Silent Chains

CHOHO CL05 (8.0 mm pitch) and CL06 (9.525 mm pitch) toothed silent chains are engineered for camshaft, balance shaft and high-pressure fuel pump drives in turbocharged gasoline and light commercial diesel engines.

CL05 series (8.0 mm pitch): CL05F-5 (12 kN), CL05CF-7 (14 kN), CL05CF-8 (16 kN) and CL05CF1-8 (16 kN)
Additional 8.0 mm pitch variants: CL05CF2-5 (12.5 kN) and CL05CF3-7 (13 kN) with optimized plate stacking
CL06 series (9.525 mm / 3/8 inch pitch): heavy-duty toothed silent chain CL06CF2-8 (12 kN)
Fine-blanked tooth flanks and shot-peened link plates maximize fatigue strength under cyclic torsional loads

CHOHO Roll-Sleeve & Oil-Hole Engine Bushing Chains (04MF / 05CF / 06CF)

CHOHO roll-sleeve and oil-hole engine bushing chains feature a radial lubrication aperture formed in the bushing wall, channeling pressurized engine oil directly into the pin-bushing bearing interface to prevent dry wear during cold starts and high-load operation.

Model 04MF1-1: 7.0 mm pitch, 4.55 mm bushing diameter, 3.11 mm pin diameter, 6.86 kN tensile strength
Model 05CF8-1: 8.0 mm pitch, 4.77 mm bushing diameter, 3.59 mm pin diameter, 8.5 kN tensile strength
Single-strand 06CF11-1: 9.525 mm pitch, 6.35 mm bushing diameter, 4.45 mm pin diameter, 10 kN tensile strength
Double-strand 9.525 mm chains: 06CF10-2 (3.59 mm pin, 21 kN load) and 06CF11-2 (4.45 mm pin, 20 kN load)

CHOHO Cold-Extruded Seamless Bushing Engine Chains (05CF4-1, 05CF7-1, 06CF-1)

CHOHO seamless bushing chains utilize multi-stage cold extrusion to form monolithic, joint-free bushings with superior roundness and press-fit retention in the link plates, withstanding high fuel-injection pump and camshaft torsional spikes.

Model 05CF4-1: 8.0 mm pitch, 4.77 mm seamless bushing, 4.80 mm inner width, 3.59 mm pin, 8.5 kN tensile strength
Model 05CF7-1: 8.0 mm pitch, 4.77 mm seamless bushing, narrow 3.20 mm inner width, 3.59 mm pin, 8.5 kN tensile strength
Model 06CF-1: 9.525 mm pitch, 5.00 mm seamless bushing, 4.79 mm inner width, 3.59 mm pin, 12.5 kN tensile strength
Monolithic bushing structure eliminates seam splitting and ensures uniform hydrodynamic oil film distribution

CHOHO Engine Roller Chains (04B, 05EF, 06EF, 06B & 06BT Series)

Single-strand and duplex CHOHO engine roller chains reduce friction losses in camshaft, oil pump, vacuum pump and balance shaft drives across passenger car and commercial diesel engines.

6.0 mm pitch compact chain: 04B-1 (4.0 mm roller diameter, 1.85 mm pin diameter, 3.0 kN tensile load)
8.0 mm pitch series: 05EF1-1 (4.71 mm roller, 10 kN), 05EF2-1 (4.77 mm roller, 9 kN) and 05EF3-1 (5.0 mm roller, 8.5 kN)
9.525 mm pitch simplex chains: 06EF3-1 (10.8 kN), 06EF4-1 (10.2 kN), 06B-1 (8.9 kN) and heavy-duty 06BT-1 (10 kN)
9.525 mm pitch duplex chains for high-torque diesel timing drives: 06B-2 (16.9 kN) and 06BT-2 (18.7 kN)

CHOHO Timing Sprockets, PA66 101L Nylon Guides & Hydraulic Tensioners

CHOHO manufactures all matched timing system components in-house: guide rails and tensioner arms are injection-molded from high-toughness PA66 (grade 101L) engineering polyamide, paired with induction-hardened sprockets and precision-valved hydraulic tensioners.

Guide rail & tensioner shoe material: injection-molded PA66 (101L) nylon engineered for high impact strength and low friction
Superior resistance to thermal aging in hot synthetic engine oils and dynamic chain whip forces
Hydraulic and mechanical tensioners with anti-return ratchets preventing chain slack during cold engine start-up
Precision sintered and machined crankshaft and camshaft sprockets matched to silent, bushing and roller chain profiles

CHOHO Motorcycle, ATV/UTV & Snowmobile Engine Timing Chains (CFMOTO OEM)

CHOHO Engine Chain manufactures high-RPM camshaft and oil pump timing chains for large- and small-displacement motorcycles, ATVs/UTVs and snowmobiles, serving as an OEM timing system supplier for CFMOTO powertrains.

High-displacement motorcycle & ATV/UTV engine timing chains (including CFMOTO big-bore engine series)
Small-displacement motorcycle and scooter engine timing chains with low friction and extended adjustment intervals
CFMOTO snowmobile engine chains engineered for sub-zero cold-start impact toughness and high-RPM stability
Validated on high-speed engine dynamometers up to 10,000–12,000 RPM in CHOHO's CNAS-accredited laboratory

CHOHO Engine Chain Division profile, IATF 16949 quality system and CNAS testing laboratory

Operating within Qingdao Choho Industrial Co., Ltd. (SZSE Stock Code: 003033) alongside its specialized subsidiary Shanghai Hantong Automobile Spares Co., Ltd.

and dedicated portal chohoacs.com, the CHOHO Engine Chain Division designs and manufactures OEM and aftermarket engine timing drive systems certified to IATF 16949.

Every timing chain family undergoes rigorous validation in CHOHO's CNAS-accredited testing center, including high-speed engine dynamometer endurance, NVH acoustic profiling, pin-bushing wear resistance in contaminated oil, and hydraulic tensioner damping calibration.

To request a technical quotation, please provide the engine code, OEM kit reference, or chain model designation (CL04, CL05, CL06, 04MF, 05CF, 06CF, 05EF, 06EF, 06BT), pitch and link count.

Complete automotive engine timing chain kits and PA66 101L nylon guide rails

CHOHO Engine Timing Chain Kits combine the primary camshaft timing chain, auxiliary oil pump or balance shaft chain, crankshaft and camshaft sprockets, hydraulic or mechanical tensioner, and injection-molded guide rails into a single matched assembly designed for a service life of 3–5 years or

100,000–150,000 km.

Series production covers major global powertrains including Volkswagen / Audi EA888, BMW N46, Mercedes-Benz M271, Geely 4G18, GM, Honda Civic, Jiangling and Kia Forte, as well as extensive coverage for Toyota, Nissan, Hyundai and Ford engines via chohoacs.com.

All timing guide rails and tensioner shoes are molded from high-toughness PA66 (grade 101L) polyamide to resist thermal embrittlement in hot synthetic engine oil and absorb cyclic chain whip impacts.

Engine toothed silent chains: CL04 (6.35 mm), CL05 (8.0 mm) and CL06 (9.525 mm) series

Stamped from German cold-rolled strip steel and assembled with hard chrome-plated pins, CHOHO toothed silent chains deliver smooth conjugate sprocket engagement and low NVH noise at high engine speeds.

The 6.35 mm pitch CL04 family includes CL04F1-9 (10 kN), CL04CF2-7 (9 kN), CL04CF2-9 (12 kN), CL04CF6-9 (13 kN), CL04CF7-9 (14 kN), CL04CF10-9 (13 kN), CL04CF11-8 (11.3 kN) and oil-pump chain CL04CF14-5 (9 kN).

For higher torque applications, the 8.0 mm pitch CL05 series provides CL05F-5 (12 kN), CL05CF-7 (14 kN), CL05CF-8 (16 kN), CL05CF1-8 (16 kN), CL05CF2-5 (12.5 kN) and CL05CF3-7 (13 kN), complemented by the 9.525 mm pitch CL06CF2-8 (12 kN).

Oil-hole roll-sleeve bushing chains and cold-extruded seamless bushing chains

CHOHO roll-sleeve bushing chains incorporate a precision radial oil hole in the bushing wall to direct engine oil straight to the pin-bushing bearing surface: standard models include 04MF1-1 (7.0 mm pitch, 6.86 kN), 05CF8-1 (8.0 mm pitch, 8.5 kN), simplex 06CF11-1 (9.525 mm pitch, 10 kN) and duplex

06CF10-2 (21 kN) and 06CF11-2 (20 kN).

For engines with high camshaft and fuel-pump torsional peaks, CHOHO produces monolithic cold-extruded seamless bushing chains—05CF4-1 (8.0 mm pitch, 4.80 mm inner width, 8.5 kN), 05CF7-1 (8.0 mm pitch, 3.20 mm inner width, 8.5 kN) and 06CF-1 (9.525 mm pitch, 5.00 mm bushing, 12.5 kN)—eliminating

bushing seam deformation.

Engine roller chains (04B, 05EF, 06EF, 06BT) and CFMOTO motorcycle / snowmobile engine chains

CHOHO engine roller chains cover 6.0 mm pitch 04B-1 (3.0 kN), 8.0 mm pitch 05EF1-1 (10 kN), 05EF2-1 (9 kN) and 05EF3-1 (8.5 kN), and 9.525 mm pitch simplex 06EF3-1 (10.8 kN), 06EF4-1 (10.2 kN), 06B-1 (8.9 kN), 06BT-1 (10 kN) and duplex diesel timing chains 06B-2 (16.9 kN) and 06BT-2 (18.7 kN).

The division also supplies OEM internal engine timing chains for high-displacement and small-displacement motorcycles, ATVs/UTVs and CFMOTO snowmobiles.

International B2B supply of CHOHO timing chain kits and OEM engine chains

We supply CHOHO complete timing chain kits, silent chains, bushing chains and engine roller chains for engine assembly plants, remanufacturers and automotive parts distributors worldwide.

Send us your engine code, OEM reference number or chain specification to receive a commercial offer.

Lead times, minimum order quantities and pricing for CHOHO Engine Chain products are calculated individually upon commercial request; public price lists are not published by the manufacturer.

We operate as an independent B2B supplier, not an authorized distributor of Qingdao Choho Industrial Co., Ltd.