Replacement Ignition & Cab Door Key for Case IH, Deutz-Fahr & New Holland Tractors - Part Number: 65400001

The standard OEM replacement master key for ignition switches and cabin door locks (part number 65400001, genuine Deutz-Fahr OEM reference 04350834) is a precision-cut multi-brand agricultural equipment key designed to operate starter ignition switches and cabin door latch cylinders across leading CNH (Case IH, New Holland) and SDF (Deutz-Fahr) machinery fleets. Engineered with an anti-twist metal alloy blade resistant to torsional fatigue and an ergonomic high-density overmolded polymer grip, it delivers smooth, binding-free rotation through internal tumbler wafers. This universal master key simplifies fleet maintenance and inventory management across utility, row-crop, heavy-duty tractors, and combine harvesters from Case IH (Maxxum, Maxxum EP Tier 4, Maxxum GARU, MXU, Puma, Puma CVX series), Deutz-Fahr (Actor, AgroCompact 3.xx, AgroPrima, AgroStar, AgroXtra, DX, DX 3, DX 4, DX 6, DX 7, Farmliner, Intrac, M, M 1000, Powerliner, Starliner, Topliner series), and New Holland (TS, TS-A Plus/Deluxe, TS-A Delta series).

Key Features & Engineering Advantages

• Factory-Calibrated Multi-Brand Precision Profile: Milled to exact CNH and Deutz-Fahr factory tolerances to ensure smooth, immediate engagement and prevent premature tumbler wear in ignition switches and door locks.
• Anti-Twist High-Strength Metallic Blade: Engineered from high-strength metal alloy that prevents bending or twisting under heavy torque, ensuring long service life during cold-weather engine starts.
• Ergonomic Overmolded Polymer Head: High-density thermoplastic handle with textured grip provides maximum tactile control when starting equipment with wet hands or heavy work gloves.
• Superior Chemical & Weather Resistance: Highly resistant to ultraviolet degradation, engine oil, diesel fuel, hydraulic fluids, and regular high-pressure washdowns.
• Fleet Unification & Inventory Efficiency: Universal replacement profile serving an extensive lineup of tractors and combine harvesters across Case IH, Deutz-Fahr, and New Holland.

Technical Specifications

Equipment Compatibility & Machine Application Guide

Manufacturer	Machine Series	Supported Models & Combines
Case IH	Maxxum & Maxxum Tier 3/4	Maxxum 100 Tier 3, 110 CVX Tier 4, 110 Tier 3, 115 Tier 3, 120 CVX Tier 4, 120 Tier 3, 125 Tier 3, 130 CVX Tier 4, 130 Tier 3, 140 Tier 3
	Maxxum EP Tier 4 Series	Maxxum 110 EP, 115 EP, 120 EP, 125 EP, 130 EP, 140 EP Multicontroller, 140 EP
	Maxxum GARU Series	Maxxum 110 GARU, 115 GARU, 120 GARU, 125 GARU, 130 GARU, 140 GARU
	MXU Series	MXU 100, 100 Pro Multicontroller, 110, 110 Maxxum X-Line, 110 Pro Multicontroller, 115, 115 Maxxum X-Line, 115 Pro Multicontroller, 125, 125 Pro Multicontroller, 130 Maxxum X-Line, 135, 135 Pro Multicontroller
	Puma Series	Puma 165 (incl. Multicontroller / Tier 4b), Puma 180 (incl. Multicontroller), Puma 195 (incl. Multicontroller), Puma 210 (incl. Multicontroller)
	Puma CVX Series	Puma 165 CVX, Puma 180 CVX, Puma 195 CVX, Puma 210 CVX
Deutz-Fahr	Actor & AgroCompact 3.xx Series	Actor 5510, Actor 5520 • AgroCompact 3.30, 3.50, 3.70, 3.90
	AgroPrima & AgroStar Series	AgroPrima 4.31, 4.51, 4.56, 6.06, 6.16 • AgroStar 4.61, 4.68, 4.71, 4.78, 6.08, 6.11, 6.21, 6.28, 6.31, 6.38, 6.61, 6.71, 6.81
	AgroXtra Series	AgroXtra 3.57, 4.07, 4.17, 4.47, 4.57, 6.07, 6.17
	DX & DX 3 Series	DX 160 • DX 3.10, 3.30, 3.50, 3.60, 3.65, 3.70, 3.75, 3.80, 3.90
	DX 4, DX 6, DX 7 Series	DX 4.10, 4.17, 4.30, 4.50, 4.57, 4.70 • DX 6.05, 6.10, 6.30, 6.50 • DX 7.10
	Farmliner & Intrac Series	Farmliner 3370 • Intrac 6.30, Intrac 6.60
	Combine Harvesters M & M 1000	M 35.80, M 36.10, M 36.30, M 36.40 • M 1202
	Powerliner & Starliner Combines	Powerliner 4030, 4035 • Starliner 4040, 4045
	Topliner Combines Series	Topliner 8 XL, Topliner 4060, Topliner 4065, Topliner 4068, Topliner 4075, Topliner 4080, Topliner 4090
New Holland	TS Series	TS125
	TS-A Plus / Deluxe Series	TS100A Plus/Deluxe, TS110A Plus/Deluxe, TS115A Plus/Deluxe, TS125A Plus/Deluxe, TS135A Plus/Deluxe
	TS-A Delta Series	TS100A Delta, TS110A Delta, TS115A Delta, TS130A Delta

Usage Advice & Workshop Notes: Prior to testing the key, ensure the lock cylinder keyway or ignition switch slot is clean and free of compacted field grit or dirt. Blow out the cylinder with low-pressure compressed air and apply a light application of dry PTFE lubricant or graphite powder (avoid oil or grease, as they attract and hold abrasive dust). Insert the key fully and verify smooth rotation across all switch detents (Accessory, Run, and Start). If the ignition switch shows noticeable mechanical binding due to worn internal tumbler wafers, service or replace the switch assembly to preserve the new key's profile integrity.