OEM Toyota Preheating Glow Plug Timer Relay (12V, Part Number: 28521-17040 ). As per my research this part is compatible with 1990 to 1993 model years carrying the 4.2L 1HZ Diesel and 3.5L 1PZ engines (specifically targeting HZJ70, HZJ73, HZJ75, and PZJ70 chassis codes).The item shows normal cosmetic wear and signs of age but is in working condition. To ensure 100% mechanical fitment, please verify that your original module's part number exactly matches 28521-17040 before completing your purchase as we are unable to accept returns if this doesn't fit.

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