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Parts for your 2003 Toyota Land cruiser-Batteries
Narva Battery Master / Isolation Switch Plastic With Removable Key (Contacts Rated 100A at 12V) - 61038BL
$42
Narva Rotary Battery Master / Isolator Switch With Removeable Keyed Knob (Contacts Rated 100A @ 12V) - 61036BL
$52
Narva Battery Master / Isolation Switch Plastic With Removable Key (Contacts Rated 100A at 12V) - 61038
$38
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Narva Automotive/Marine Battery Master / Isolation Switch (Contacts Rated 300A @ 12V) - 61044BL
$102
Narva Rotary Battery Master / Isolator Switch With Removeable Keyed Knob (Contacts Rated 100A 12V) - 61036
$55
Narva 4 Position Rotary Battery Master / Isolation Switch (Contacts Rated 300A @ 12V) - 61084BL
$113
Narva Heavy Duty Battery Master / Isolation Switch with Removable Key (Contacts Rated 250A @ 12V) - 61050
$165
Narva Battery Master / Isolation Switch Lever Type With Lockout (Contacts Rated 250A @ 12V) - 61064
$458
Narva Battery Master / Isolation Switch Lever Type With Indexing Post (Contacts Rated 180A @ 12V) - 61074
$148
Narva Dual Pole Battery Master / Isolation Switch Lever Type With Lockout (Contacts Rated 250A @ 12V) - 61066
$633
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2003 Toyota Land Cruiser batteries
Based on Toyota’s own technical literature – the 2003 Land Cruiser owner’s manual (Electrical/Battery information) and the Toyota 100 Series service manual – this model absolutely uses a 12-volt automotive battery. Many diesel variants (such as 1HD-FTE and 1HZ models) were factory-equipped with twin 12‑volt batteries wired in parallel for stronger cold‑cranking performance.
The battery’s job is simple but critical: it delivers the grunt to crank the big Land Cruiser engine and keeps the electronics happy when the alternator isn’t spinning. It also buffers voltage for ECUs, lights, infotainment, winches and touring gear like fridges or inverters. On dual-battery diesels, the matched pair improves starting reliability in cold or remote conditions.
For Aussie and Kiwi setups, typical fitments include N70ZZ/N70ZZL or 80D26-style batteries
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