Deck Belt GX25998 for John Deere ZTrak and Husqvarna iZ Mowers

Overview

This aftermarket GX25998 deck belt is a replacement-style mower deck belt for select John Deere ZTrak and Husqvarna iZ / ZTH zero-turn mower deck applications.

Supplier listing data associates this belt with select 42-inch, 48-inch, 52-inch, and 61-inch mower deck applications. Match the original belt part number and confirm your mower model before ordering.

Verify your part numbers before ordering.

Key Features

• Aftermarket replacement-style mower deck belt
• Product Type: Deck Belt
• Lead Part Number: GX25998
• Overall Length: 152.3 inches
• Width: 5/8 inch
• Height: 0.51 inch
• Designed for select John Deere ZTrak and Husqvarna zero-turn mower deck applications

Compatible Brands & Model Series

Supplier listing data associates this GX25998 deck belt with the following mower deck applications.

Husqvarna model references found in supplier data include:

• iZ 21, 48-inch deck, 2006-03 and 2007-04 references
• iZ 4217, 42-inch deck, 2008-12 reference
• iZ 4217 T, 42-inch deck, 2005-08, 2005-12, and 2006-08 references
• iZ 4218, 42-inch deck, 2004-08 and 2004-09 references
• iZ 4817 KAA, 48-inch deck, serial 033600000 and above, 2004-09 reference
• iZ 4818 and iZ 4818 KAA, 48-inch deck references
• iZ 4819, 48-inch deck, 2005-12, 2007-09, and 2008-12 references
• iZ 4821 and iZ 4821 KAA, 48-inch deck references
• iZE 4821, 48-inch deck, serial 033600000 and above, 2004-01 reference
• iZ 5223, 52-inch deck, 2004-08 and 2004-09 references
• iZ 6123, 61-inch deck, 2004-09 reference
• ZTHKH 4818, ZTHKH 4818 A, and ZTHKH 4820 48-inch deck references

John Deere model references found in supplier data include:

• Z515E
• Z525E
• Z530M
• Z530R
• Z535M
• Z535R
• Z540M
• Z540R
• Z545R
• ZTrak mower applications

Verify your original belt number, mower model, deck size, and belt routing before ordering.

Replaces OEM Part Numbers

• John Deere: GX25998

Specifications

• Belt Part Number: GX25998
• Overall Length: 3870 mm / 152.3 inches
• Width: 5/8 inch
• Height: 13 mm / 0.51 inch

Common Symptoms / When to Replace

• Mower deck belt is cracked, glazed, stretched, or frayed
• Deck belt slips, squeals, or jumps off the pulleys
• Blades lose speed under load
• Uneven cutting caused by worn or slipping deck belt
• Original belt number matches GX25998

What’s Included

• 1 aftermarket replacement-style deck belt
• Belt Part Number: GX25998

Quick Ship Fulfillment

This item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and specifications shown in this listing.

Why Buy From PTO Direct USA

• Fitment-first product organization by replacement part-number path
• Clear belt specifications to help reduce ordering errors
• U.S.-focused fulfillment options for faster delivery when available

Need Help Confirming Fitment?

Send us your mower model number, deck size, and the part number printed on your original belt. We can help confirm whether this is the correct replacement path.

FAQ

Is this an OEM deck belt?

No. This is an aftermarket replacement-style deck belt intended to replace the listed part-number path when the physical fitment details match.

What part number does this belt replace?

This listing is organized around the GX25998 deck belt replacement path.

Can I order this belt by deck size only?

No. Deck size alone is not enough. Match your original belt number and confirm your mower model, deck size, and belt routing before ordering.

What is included with this listing?

This listing includes 1 deck belt for the GX25998 replacement path.