Engine undertrays and sump guards in New Zealand
A sump guard or undertray for a passenger car or SUV in New Zealand usually costs about NZ$85 to NZ$340. A steel bash plate for a pickup costs about NZ$300 to NZ$1,010, and full underbody protection for a 4x4 costs NZ$940 to NZ$1,360. For current prices on your exact vehicle, create a request on BlaBlaPrice: its AI looks through local sellers' websites and price lists and shows what it finds, while sellers reply in the chat with their own offers.
Approximate prices in New Zealand, November 2026 (sellers' websites)| Type and vehicle | Price (NZ$) |
|---|
| Plastic undertray, van or small car (VW Transporter) | NZ$150–200 |
| Steel or aluminium guard, car or SUV (Lexus GX, Subaru WRX) | NZ$85–340 |
| Steel bash plate, pickup (Nissan Navara, Toyota Hilux, Mitsubishi Triton) | NZ$300–1,010 |
| Full underbody protection, 4x4 (Ford Ranger/Everest, Toyota Hilux) | NZ$940–1,360 |
Steel, aluminium or plastic
Steel is the strongest and usually the cheapest option, but it is heavier and can rattle if it is badly fixed. The steel bash plates for pickups in the listings are 3 to 4 mm thick, so ask for the thickness in millimetres. Aluminium is lighter and does not rust, but it protects well only when it is thick enough and of a good alloy. A plastic undertray is the lightest and keeps stones off, yet it will not survive a hard knock from a kerb.
Warranty and consumer rights
The Consumer Guarantees Act offers long-lasting guarantees on products and services bought for personal or household use in New Zealand. Warranty terms are usually printed on the packaging or in the user manual, as New Zealand Consumer Law requires. Before you pay, ask the seller to state the warranty length and what it covers, and to put it in the chat.
Season and roads
Summer runs December to February and winter June to August. November is the start of summer, when many drivers head out on gravel roads and rough tracks. Winter brings wet roads and mud, which is when the underside takes the most stones and spray. Fitting before June is the sensible plan if you drive in the hills or on dirt roads.
Delivery and fitting between cities
Delivery and fitting are arranged between the main cities of Auckland, Wellington, Christchurch, Hamilton and Tauranga, so name the city where the guard must arrive and where it will be fitted. Give the size in millimetres and the car's year, body and engine. Ask whether the price includes delivery and fitting, or whether the kit is meant for self-fitting.
Describe your car in your own words in a request on BlaBlaPrice. It is free for buyers. The AI reads the request, asks for anything missing, and looks through sellers' websites and price lists in New Zealand, then shows the prices and businesses it found. Registered sellers receive the request and answer in the chat with their own price and terms, while your contacts stay hidden until you choose to share them. For fitting tools, see car tools and spanner sets, and for the whole category, see car accessories.
Questions and answers
How much does a sump guard cost in New Zealand?
For most passenger cars and SUVs the price is about NZ$85 to NZ$340, and pickup bash plates are about NZ$300 to NZ$1,010. Full 4x4 underbody protection costs about NZ$940 to NZ$1,360. These are approximate prices from sellers' websites, November 2026.
Is a steel or an aluminium guard better?
Steel is stronger and usually cheaper but heavier, while aluminium is lighter and does not rust, provided it is thick enough. Check the thickness in millimetres before you buy.
Does New Zealand consumer law cover a sump guard?
The Consumer Guarantees Act covers products bought for personal or household use in New Zealand. Ask the seller for the warranty terms in writing, because they are usually printed on the packaging or in the manual.
Can I have a guard delivered to another city?
Delivery is arranged between Auckland, Wellington, Christchurch, Hamilton and Tauranga. State the city where you need it in your request.
