Search by Vehicle

  • Google Facebook Login

    Google Facebook Login

  • Free Delivery for Orders over R950.00

    Free Delivery for Orders over R950.00

  • Did not find what you looking for!

    Did not find what you looking for!
Opel Astra Classic 1.6 G Thermostat Engine Code -Z16XE 99-04
  • Opel Astra Classic 1.6 G Thermostat Engine Code -Z16XE 99-04

Opel Astra Classic 1.6 G Thermostat Engine Code -Z16XE 99-04

TM5069
Opel

Opel Astra Classic 1.6 (G) Thermostat ( Engine Code -Z16XE ) 99-04

Delivery Nationwide - Door to Door

R1,495.00
Tax included
Quantity
In Stock

Ask about the product on WhatsApp
  Secure Cart Checkout

SECURE SSL ENCRYPTION | 3D SECURE CART PAYMENTS

  Delivery policy

FREE DELIVERY OVER R950* | NATIONWIDE SHIPPING

  RETURNS & REFUNDS POLICY

BUY WITH CONFIDENCE | EASY RETURNS POLICY

Description

Opel Astra Classic 1.6 G Thermostat Engine Code -Z16XE 99-04

Thermostats & Thermostat Housings — OEM-Spec Temperature Control

Precise temperature control is the backbone of modern engines. This OEM-spec component (thermostat or integrated housing, depending on the application) restores correct warm-up behaviour, stabilises operating temperature, and protects against overheating in South African conditions.

Why replace the thermostat / housing

  • Restores correct warm-up strategy and stable operating temperatures
  • Prevents overheating, detonation and oil breakdown under SA heat
  • Protects turbochargers, head gasket and emissions systems
  • OEM-aligned design for fitment, sealing and sensor compatibility

Component overview

Thermostat (wax / electronic)
  • Controls coolant flow between engine and radiator
  • Wax-type opens by temperature; electronic units add ECU control
  • Failure modes: stuck open (runs cold), stuck closed (overheats)
Thermostat housing / module
  • Integrated unit with thermostat, O-rings, sensors and routing channels
  • Material: polymer or alloy; each requires correct torque and sealing
  • Failure modes: leaks, warping, cracked spigots, sensor faults

Common symptoms

  • Temperature gauge drops at speed but climbs in traffic (stuck open)
  • Overheating warnings, boiling sounds, or coolant push (stuck closed)
  • Coolant residue or staining around housing joints and hose unions
  • Heater weak at idle, improves with revs (air or poor flow)
  • ECU codes for thermostat heater / temp correlation (electronic units)

What’s included

  • Thermostat or thermostat-housing module matched to the listed application
  • Seals/O-rings where applicable

Images are for illustration. Confirm by OE/part number, engine code and connector type. Contact us with your VIN for fitment support.

Installation best practice

  • Flush system and refill with OEM-approved coolant and deionised water
  • Clean mating faces; replace O-rings; torque fasteners to spec
  • Follow the bleed procedure to remove air pockets (critical)
  • For electronic units: check connector condition and route loom correctly

FAQs

Is this a thermostat or a complete housing?
It matches the vehicle application listed. Some models use a standalone thermostat, others use an integrated housing/module.

Can I replace an electronic thermostat with a basic wax unit?
No. Vehicles calibrated for electronic control need ECU-assisted response for warm-up and load changes.

Do I need new coolant?
Yes. Wrong or contaminated coolant causes deposits, poor valve response and leaks. Use OEM-approved coolant with deionised water.

Should I replace the thermostat when fitting a new water pump?
Recommended on higher-mileage cars to stabilise temperatures and protect the head gasket.

How do I confirm fitment?
Match by VIN or OE number (opening temperature, connector style, housing layout). We can confirm before purchase.

Warranty & important notes

  • 12-month warranty against manufacturing defects
  • Warranty requires correct coolant, proper bleeding and torque procedures
  • Mixing coolant types or using tap water may void warranty
Need help confirming fitment? WhatsApp 069 777 2 777 or call 010 970 6009. Have your VIN ready for the fastest assistance.
Product Details
Opel
TM5069
New
Comments (0)
Grade
No customer reviews for the moment.
16 other products in the same category:

Follow us on Facebook

Facebook