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8N1721 Connecting Rod Caterpillar 3304 3306 D6D 966D Tapered

CATERPILLAR

8N1721 Connecting Rod Caterpillar 3304 3306 D6D 966D Tapered

OEM:8N1721; Material:Forged Steel; Fit CATERPILLAR 3304 3306; New, Factory Direct, 12 Months Warranty

SKU
SJC-PNVBS8
OEM No.
8N1721
Availability
In stock
Request a QuoteContact us for pricing & MOQ

Key Information

OEM Cross Reference

  • 8N1721

Vehicle Fitment

225, 235, 330, 350 Excavators; D6D-D6G Dozers; 966D-966F Loaders; 12G/140G/160G Graders; D250E/D300E Trucks

Product Overview

Item

Details

Product Name

Tapered Pin Connecting Rod Assembly

OEM Number

8N1721 (Replaces 269-5291, 5S6360, 8N1984, 8N1720)

Engine Fitment

Caterpillar 3304, 3304B, 3306, 3306B, 3306C, D330C, D333C

Vehicle Fitment

225, 235, 330, 350 Excavators; D6D-D6G Dozers; 966D-966F Loaders; 12G/140G/160G Graders; D250E/D300E Trucks

Specifications

Forged 40Cr Steel, Tapered Pin, Pin Diameter 43.00/43.18mm, Weight Approx. 3.4kg, 4 pcs per 3304 / 6 pcs per 3306, Torque 40±4 N·m + 90°

Frequently Asked Questions

Is this a genuine OEM part or a replacement?

These are new replacement connecting rods manufactured to OEM specifications. They match original dimensions and material grades (forged alloy steel), but are not branded as the vehicle manufacturer’s original part.

Will this rod fit my engine?

The title and page list the engine model(s) this rod fits, with the OEM cross-reference number. Not sure? Send us your vehicle VIN or engine code and we will confirm compatibility before shipping.

What material and process are used?

Rods are forged from high-grade alloy steel (C70S6 / 42CrMo4 type grades depending on the model), then precision machined and batch-inspected for dimensional accuracy.

What is the MOQ and sample policy?

No strict MOQ on stock models — sample orders and trial lots are welcome. Contact us for quantity-based pricing.

How long is delivery?

In-stock items ship within one week; production orders typically take 2–4 weeks. Worldwide shipping by sea, air or express — FOB / CIF / DDP available.

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