Triumph TR4A

Built from 1965 to 1967.

30-day volume
$30k↑ 311% on the prior 30 days
30-day new listings
19↑ 217% on the prior 30 days
For sale now
27

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About 3 a week across 4 sites.

Triumph TR4A by model year

The Triumph TR4A, introduced in 1965, was a significant update to the Giovanni Michelotti-styled TR4. The most important change was the new independent rear suspension (IRS) system, which greatly improved ride quality and handling. While most cars received the new IRS, Triumph also built a number of TR4As with the old TR4's solid rear axle, primarily for the benefit of racers who preferred the older setup.

The TR4A retains the classic good looks of the TR4, including its roll-up windows and optional "Surrey Top" targa roof. It's powered by the same 2138cc inline-4 engine, providing lively performance for its era. Today, collectors appreciate the TR4A for combining the pure TR4 aesthetic with a more comfortable and capable chassis.

Buying Tips

  • Check for rust thoroughly, especially in the floors, inner and outer sills, and around the rear suspension mounting points, which are unique to the IRS cars.
  • The independent rear suspension is a key feature. Inspect the driveshaft universal joints, differential mounts, and lever-arm shocks for wear and leaks, as repairs can be involved.
  • Verify if the car has the independent rear suspension or the less common solid rear axle, which was a factory option. The chassis number prefix CTC indicates an IRS car, while CT denotes a live axle.
  • The 2.1-liter engine is durable, but check for low oil pressure (it should be at least 50 psi when warm) and signs of overheating, a common issue for Triumphs of this period.

270 Triumph TR4A vehicles have been tracked across auctions and listings on Hypercars, with 27 currently live.

Data sourced from auction results and dealer and private listings across 100+ marketplaces, auctions and forums, plus thousands of dealers. Updated daily.

Frequently Asked Questions

How much does a Triumph TR4A cost?

Over the last 12 months, Triumph TR4A sold for a median of $23,750 across 13 auction sales tracked on Hypercars; the middle 50% sold between $12,600 and $27,500. There are 27 currently for sale.

How many Triumph TR4A listings are for sale right now?

There are 27 Triumph TR4A listings currently live across auctions, dealers, and marketplaces tracked by Hypercars.

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