Porsche 986 Boxster

Buyer's Guide

Porsche 986 Boxster

1996–2004

Written by Zach, an independent mechanic in the Pacific Northwest. Last reviewed . Spot a mistake? Tell me.

Overview

The Boxster helped keep Porsche afloat in the late '90s, and it handles the way a mid-engined car should. Its M96 engine shares the 996's known problems: the intermediate shaft (IMS) bearing, rear main seal leaks, and bore scoring on some engines. That's also why they're so cheap. Buy one with IMS paperwork, or budget for the retrofit, and you'll have one of the best-handling cars you can get at this price.

Production
1997–2004
Built
~164,000 worldwide
Price range
$10,000–$40,000+
Best years
2003–2004 (facelift: glass rear window, updated interior). The 1997–99 cars have the stronger dual-row IMS bearing.

What to Pay

Prices checked January 2026. Rough US market ranges. Location, history, and options move these a lot.

Project

$6,000–$12,000

Cars with unknown IMS status, high mileage, or significant issues.

Driver

$12,000–$22,000

Good running examples with known IMS status. Budget for maintenance.

Excellent

$22,000–$35,000

Well-maintained Boxster S with IMS retrofit and documentation.

Concours

$35,000–$50,000+

Low-mileage Boxster S with complete history. Anniversary editions.

Which One to Buy

Boxster (Base)

1997–2004

The base car, with a 2.5L (1997–99) or 2.7L (2000–04) flat-six making 201–228 hp. Handles beautifully, with adequate power.

Desirability Medium

Boxster S

2000–2004

The 3.2L with 250–258 hp, bigger brakes, and bigger wheels. The one I'd buy.

Desirability High

Walk Away If…

  • Unknown IMS bearing status
  • Evidence of bore scoring (knocking, smoke, oil consumption)
  • A rear main seal leak. Budget to fix it along with an IMS retrofit.
  • Water damage from clogged drains
  • Non-functional convertible top
  • Missing service records
  • Salvage title without documentation

Pre-Purchase Inspection

What I'd check on any 986 before buying, with a rough cost if it's bad. Print it and take it with you.

Engine (check first) 4 checks
  • IMS Bearing Status The big one. Intermediate shaft bearing can fail catastrophically. Check if upgraded or get oil analysis. If bad: $2,000–3,500 for retrofit / Engine if it fails
  • RMS Leak Rear main seal leak can indicate starting IMS bearing failure. Check for oil at bell housing. If bad: $1,500–2,500
  • Bore Scoring M96 engines can develop cylinder bore scoring. Listen for knocking, check for smoke and oil consumption. If bad: $10,000–20,000 for engine rebuild
  • Coolant System Check expansion tank for cracks, radiators for leaks. Overheating destroys engines. If bad: $500–1,500
Convertible Top & Body 4 checks
  • Convertible Top Operation Test full operation multiple times. Check hydraulic cylinders and cables. If bad: $1,000–2,500
  • Window Regulators Common failure. Test both windows multiple times up and down. If bad: $300–600 each
  • Rear Window Clarity Plastic rear window yellows and scratches. Check visibility. If bad: $300–600
  • Drain Tubes Clogged drains cause water in cabin. Check carpets for moisture. If bad: $100–500
Transmission 3 checks
  • Manual Transmission Test every gear. The five-speed is tough, but check for synchro wear. If bad: $1,500–3,000
  • Tiptronic Check for smooth shifts. Less desirable but functional. If bad: $2,000–4,000
  • Clutch Should engage smoothly mid-travel. Mid-engine car makes clutch replacement easier than 911. If bad: $1,500–2,500
Suspension & Electrical 3 checks
  • Control Arm Bushings Wear causes clunking and vague handling. Common wear item. If bad: $400–800
  • Coil Packs Common failure causing misfires. Usually replaced in sets. If bad: $300–600
  • MAF Sensor Dirty MAF causes running issues. Can often be cleaned. If bad: $100–300

Worth Paying Extra For

  • IMS bearing retrofit completed
  • Boxster S for better performance
  • Manual transmission
  • Complete service documentation
  • A 1997–99 car for the stronger dual-row IMS bearing, or a 2003–04 for the updated interior and glass rear window
  • Sport package with improved suspension
  • Dry-climate car (less rust, better soft top)

Running Costs

Insurance
$800–1,500/year
Annual maintenance
$1,500–3,000 for regular service
Common repairs
$1,000–2,500/year typical
Fuel economy
20–26 MPG

Before You Buy

  • The 986 is one of the best sports car values around.
  • The mid-engine layout gives it better balance than a 911 of the same era.
  • An IMS retrofit is worthwhile insurance. Factor it into the price.
  • The Boxster S is worth the extra money.
  • An oil analysis before you buy can hint at the IMS bearing's health.
  • If you do your own work, running costs are very reasonable for a Porsche.
  • Rennlist and Planet-9 both have excellent 986 sections.
  • The convertible top is dependable when the switches and seals are looked after.
  • Budget for a water pump and top maintenance.

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