Graco 287653 Combination Gear Repair Kit

The Graco 287653 Combination Gear Repair Kit restores smooth, reliable drive performance on select 3900-series LineLazer units. OEM fit and durability for quick, confident repairs.

Fits: LineLazer IV 3900, LineLazer V 3900, 3900 Auto-Layout, R300 (3900 drive)
Not for: 5900 series
Purpose: Replaces worn combination gear in the drive/gear train
OEM: Genuine Graco part #287653

Retail Price: $236

You save: $29.5 (12.50%)

Our Price: $206.5

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Description

Overview & Key Details

The Graco 287653 Combination Gear Repair Kit is a genuine OEM drive-train component used to restore smooth, reliable gear operation in specific Graco line stripers in the 3900 family. If your unit’s combination gear is worn or damaged, this kit brings it back to spec for consistent performance and longer service life.

Compatible Machines

Graco LineLazer IV 3900
Graco LineLazer V 3900
Graco LineLazer 3900 Auto-Layout (where equipped)
Graco R300 (applications using the 3900 drive/gear set)

Note: This kit is for the 3900 family. It is not for 5900 models (those typically use a different combination gear).

Quick Specs

Part Number	287653
Part Type	Combination gear (drive/gear train component)
Fits	3900 / R300 family (see list above)
Not For	5900 family (different gear; do not interchange)
OEM / Authentic	Genuine Graco replacement kit

What the Combination Gear Does

Transmits power within the drive to keep pump/striping system synchronized.
Reduces slippage, chatter and premature wear when the original gear is worn.
Restores factory feel and performance when paired with proper maintenance.

What’s Included

287653 Combination Gear (primary gear assembly)
Associated OEM components as supplied by Graco for this kit revision

Kit contents may vary slightly by production run. Always compare to your parts diagram before installation.

Fit & Install Notes

Confirm your model and serial range align with the 3900/R300 family before ordering.
Inspect mating gears, shafts, keys and bearings; replace any worn parts at the same time.
Follow the torque specs and lubrication guidance in your official Graco manual.

Why Choose the Graco 287653 Combination Gear Repair Kit?

OEM engineering, fit, and durability
Smoother drive engagement and reduced noise
Helps extend overall drive-train life when installed with fresh lubricant

Frequently Asked Questions

No. The Graco 287653 Combination Gear Repair Kit is for the 3900 family. 5900 machines typically require a different combination gear and should not be interchanged.

Check your model badge and parts manual. If it’s a LineLazer 3900 (IV or V) or an R300 package using the 3900 drive, this kit is the correct combination gear. Match the diagram callouts before purchasing.

Grinding noise, irregular engagement, visible tooth wear, or inconsistent striping/pump drive are common indicators. Inspect the complete gear train and replace worn companion parts.

Use the lubricant type and quantity specified in your Graco service manual. Over- or under-lubrication can shorten gear life and increase noise.

Yes. The 287653 is a genuine Graco replacement kit designed for correct fit, material hardness and durability in 3900-series drives.