When a Kubota M5L-111 vineyard tractor powered by Yanmar 3/4TNA84 drops compression at 5 a.m., every grape cluster left on the vine risks sun-burn. Guangzhou Honour Time Machinery Limited air-ships the exact OEM-reference piston 129105-22080 and three-piece piston ring 129105-22500 set overnight to Sonoma, California. Our 2025-10-21 inventory shows 480 kits ready for FedEx uplift, helping West-Coast growers finish harvest without costly dealership delays.
129105-22080 – Fully machined Yanmar 3/4TNA84 aluminum piston with graphite skirt coating for 84 mm bore; weight class 3 for smoother high-rpm operation.
129105-22500 – Three-piece nitrided piston ring pack (1.2-1.5-2.8 mm) engineered for 3/4TNA84 naturally aspirated duty; chrome-faced oil ring cuts lube consumption to<0.08 %.
We specialise in Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar & Weichai complete engines and spares. Alongside the 3/4TNA84 piston & ring kit you can add:
wet cylinder liner 129110-92150 (custom oversizes available)
main & con-rod bearings, thrust washers
full overhaul gasket kit, crankshaft, turbocharger
high-flow water pump, oil pump, fuel injection pump & injectors
All parts are checked on a Zeiss CMM, packed in vacuum-sealed trays and shipped with ISO 9001:2015 traceability labels.
Cummins QSB4.5 water pump – bolted to the front housing of a Takeuchi TB290 excavator; circulates coolant through liner jackets.
Komatsu SAA4D95LE-5 crankshaft – installed in the block of a PC78US-10 mini-excavator; converts piston motion to rotation.
Caterpillar C4.4 turbocharger – mounted on the exhaust manifold of a Cat 299D3 skid-steer; boosts intake air for more power.
Isuzu 4LE2 injection nozzle – fitted in the head of an Isuzu NRR truck; atomises fuel into the combustion bowl.
Kubota V3300-CR-TE4 oil pump – attached to the timing case of a Kubota M6-141 tractor; feeds lube to crank & turbo.
Yanmar 3TNV88 thrust washer – positioned at the centre main bearing of a Yanmar SV08-1B mini-excavator; controls crank end-play.
Weichai WP6 con-rod bearing – fits inside the big-end of a SDLG L956F wheel loader; carries combustion loads to crankpin.
Cummins 6CTA8.3 piston cooling nozzle – screwed into the block of a Grove RT765E crane; sprays oil under the piston crown.
Komatsu 6D95 liner kit – pressed into the block of a Komatsu PC120-8 excavator; forms sliding surface for rings.
Caterpillar 3054C cylinder head – sits atop the block of a Cat 428F backhoe; houses valves & injectors.
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Guangzhou Honour Time Machinery Limited
Room 312, Time-Square, 818 Congyun Road, Baiyun District, Guangzhou, China
Tel / WhatsApp: +86 135 3237 9052
Email: info@parts-sealing.com
Monday – Saturday 08:30-18:00 (GMT+8)
Ready to quote Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar & Weichai engine parts within 30 minutes.
Copyright © 2025 Guangzhou Honour Time Machinery Limited. All rights reserved.
OEM numbers shown are for reference only; we supply replacement parts that meet or exceed original specifications.
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