COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601 Planetary Drive Z21 photo 1

COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601 Planetary Drive Z21 photo 2

COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601 Planetary Drive Z21 photo 3

COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601 Planetary Drive Z21 photo 4

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COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601 Planetary Drive Z21

ConditionNew – Open box

Part number1717.521.042also 1717521042

In stock

$237.49

Shipping $3.99 · ships from Kansas City, MO

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Ships from Kansas City, MOUSPS, UPS or FedEx. Tracking sent by email.

30-day return windowIf it arrives defective, damaged or not as listed.

Not sure it fits?Call or text 813-260-8356 with your VIN or old part number.

Direct priceYou buy from us, with no marketplace fees in the middle.

Specifications

Part number	1717.521.042
Condition	Open box
Category	Drivetrain
Machine	Construction
Model	COMER 1717.521.042 Sun Gear 4.28:1 PG1600 PG1601
Item #	158213086926

About this part

Genuine COMER planetary drive sun gear. Part Number: 1717.521.042 Gear Ratio: 4.28:1 Application: PG1600 / PG1601 planetary drive applications Z21 / 21 tooth configuration. Additional numbers found on the part: 46090, 1717.521.042, 25123904. Please verify fitment by part number and dimensions before purchase. *Fast shipping!!!

The COMER 1717.521.042 is a sun gear for PG1600 and PG1601 planetary drives. The sun gear is the center gear of the planetary stage: it is driven by the input and turns the planet gears around it. This one has 21 teeth (Z21) for a 4.28:1 ratio. It is replaced when teeth are pitted or chipped, often found during a rebuild after noise or metal in the oil.

Before you order: match 1717.521.042, the 4.28:1 ratio and the tooth count. Other numbers on the part are 46090 and 25123904.

New, open box, never installed. Ships from Kansas City, MO with tracking.

Shipping & returns

Orders ship from Kansas City, MO with USPS, UPS or FedEx. Shipping on this part is $3.99, shown before you pay. You get the tracking number by email as soon as it ships.

We accept returns for items that arrive defective, damaged or incorrect. Contact us within 30 days of delivery at shopmxlparts@gmail.com with your order number and photos. Full return policy