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550 AM

1974 Triumph Stag Auto

Red Petrol 2997cc
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MOT Status

Valid
Expires10 Mar 2027
Tests2 (2 pass, 0 fail)
Pass rate100%

Mileage

41,453 mi
Last recorded41,453 miles
Recorded on11 Mar 2026
Typical for 1974 Triumph Stag Auto63,295 mi

Below or average mileage for this year

4 checks still locked for this Triumph
Stolen
Finance
Write-off
Keepers
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Vehicle Details

Registration550 AM
MakeTriumph
ModelStag Auto
Year1974
ColourRed
Fuel typePetrol
Engine2,997cc

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50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

2 pass
Pass 11 Mar 2026 41,453 miles
Pass 26 Feb 2025 41,089 miles

How Reliable is the Triumph Stag Auto?

Based on 21,225 MOT tests across 2,079 vehicles.

76.9%
Pass Rate
397
Miles/Year
55
Year Lifespan
2,079
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 740
Parking brake: efficiency below requirements 550
Suspension component mounting prescribed area is excessively corroded 491
brake binding 442
Exhaust emissions carbon monoxide content excessive 440
Full Triumph Stag Auto reliability report

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550 AM is a 1974 Triumph Stag Auto in Red with a 2,997cc petrol engine. This vehicle has been through 2 MOT tests with a personal pass rate of 100%.

Across all 1974 Triumph Stag Auto models, the average MOT pass rate is 77.7% with a typical mileage of 63,295 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Triumph Stag Auto fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 740 recorded failures. If you're considering buying 550 AM, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag Auto typically stays on UK roads for around 55 years. At 52 years old, this Triumph Stag Auto is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of 550 AM?

You can check the full history of 550 AM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was 550 AM registered?

550 AM is a 1974 Triumph Stag Auto, first registered on 25 January 1974.

Is 550 AM safe to buy?

The MOT history for 550 AM shows 2 tests with a 100% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does 550 AM have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on 550 AM. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.