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SKU:
NLT2L01197
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Fuel Tank with Cap GY21876 GY21102 GY20894 for John Deere 100 L LA D Series
$103.99
In Stock
$103.99
Sale price
$103.99
Regular price
This aftermarket gasoline fuel tank with cap replaces John Deere GY21876, GY21102, and GY20894 on compatible 100, L, LA, and D-series lawn tractors not equipped with the excluded 54-inch deck configuration.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- John Deere 102, 105, 115, 125, 135, 145
- John Deere D105 and D120 with matching tank
- John Deere L100, L105, L108, L110, L111, L118, L120, L130
- John Deere LA100, LA105, LA110, LA115, LA120, LA125, LA130, LA135, LA140
- Additional matching 100-series applications using GY21876 / GY21102 / GY20894
- Not for the commonly excluded 54-inch mower-deck configuration
Product Overview
A split seam, cracked neck, leaking fitting, or contaminated tank can make a mower unsafe and unreliable. This one-piece replacement restores secure fuel storage when the original plastic tank can no longer be trusted.
Deere used related tank designs across many tractors, but deck size, fender layout, brackets, and production changes matter. Models with a 54-inch deck are commonly excluded, so the original number, dimensions, outlet, venting, and mounts must be checked.
Key Features & Performance
- One-piece molded replacement tank with cap
- Replaces several Deere residential-tractor fuel tank numbers
- Useful for cracks, seam leaks, damaged necks, and heavy contamination
- Broad application across 100, L, LA, and selected D-series tractors
- Aftermarket lawn-tractor fuel-system part
Replaces Part Numbers
- GY21876
- GY21102
- GY20894
Common Uses
- Replacing a tank that leaks at a seam or outlet
- Repairing a cracked filler neck or damaged cap area
- Removing a tank that cannot be cleaned after water or debris contamination
- Restoring safe fuel storage on an older lawn tractor
Technical Specifications
- Product Type: Gasoline fuel tank with cap
- Construction: One-piece molded plastic
- Position: Under rear fender / seat area on matching tractors
- Fuel: Gasoline
- Common Exclusion: 54-inch deck configuration
- Replacement Type: Aftermarket
Installation & Fitment
- Match GY21876, GY21102, or GY20894 and compare tank shape and outlet
- Verify mower deck size, brackets, fender clearance, cap, vent, and hose routing
- Work outdoors with a cool engine and no sparks or open flame
- Replace hardened fuel hose, grommets, clamps, and filter as needed
- Add a small amount of fuel first and inspect every seam and connection before full filling
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model names and year ranges are a starting point. Match the original reference number, configuration, connections, mounting points, and product-specific details before ordering.
Frequently Asked Questions
Q: Why is the 54-inch deck mentioned? A: Compatible-tank listings commonly exclude that configuration because the surrounding layout can differ.
Q: Is the cap included? A: This product is identified as a tank with cap; confirm the pictured contents before installation.
Q: Can a cracked fuel tank be safely repaired with glue? A: Fuel and vibration make many improvised repairs unreliable; replacement is the safer long-term solution.
Part Summary
keywords: John Deere GY21876 fuel tank, GY21102 gas tank replacement, GY20894 mower fuel tank, LA135 leaking tank repair, D120 lawn tractor gas tank, John Deere one piece fuel tank, L100 cracked fuel tank, aftermarket Deere tank with cap
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.