Barr Marine CR-20-98126 Center Exhaust Riser | Low-Profile 6.75 in. | Replaces Crusader 98126

Barr Marine CR-20-98126 Center Exhaust Riser — Low-Profile | Replaces Crusader 98126

Part Number: CR-20-98126 (Barr Marine)  |  Replaces OEM: Crusader 98126  |  Brand: Barr Marine

Barr Marine CR-20-98126 is a heavy-duty cast-iron, water-cooled center-discharge exhaust riser and direct replacement for Crusader OEM 98126 on selected Crusader V8 marine engines with center-rise exhaust manifold arrangements. The riser connects the exhaust manifold to the exhaust hose, injecting cooling water into the exhaust stream to cool gases before they exit the vessel.

Important — this is a Barr Marine aftermarket replacement part, not a genuine Crusader OEM assembly. CR-20-98126 is Barr’s direct-replacement equivalent for Crusader OEM 98126. Height and configuration match the original low-profile specification.

Height matters: CR-20-98126 preserves the original low-profile 6.75 in. (171.5 mm) height. A taller replacement option (Barr CR-20-29015 / Sierra 18-1938) is also available for compatible applications where additional engine-box clearance exists — confirm overhead clearance in your engine compartment before ordering either option.

Specifications

• Part Number: CR-20-98126 (Barr Marine)
• Replaces OEM: Crusader 98126
• Brand: Barr Marine
• Product Type: Water-Cooled Center-Discharge Exhaust Riser
• Configuration: Low-profile center riser
• Construction: Heavy-duty cast iron, Crusader-blue painted finish
• Exhaust Hose Connection: 4 in. (101.6 mm) I.D.
• Overall Height: approx. 6.75 in. (171.5 mm)
• Outlet Angle: approx. 10° downward
• Includes: Mounting hardware and applicable plugs; gasket supplied in common packaged configurations
• System: Wet exhaust / water-injected exhaust cooling circuit
• Weight: approx. 4.0 kg / 8.8 lb

Compatible Applications

Fitment is confirmed by the existing riser number and center-rise exhaust manifold configuration. Documented Crusader V8 applications include:

• Crusader 283 CID V8
• Crusader 305 CID V8
• Crusader 307 CID V8
• Crusader 327 CID V8
• Crusader 350 CID V8
• Crusader XL-series center-riser applications using the corresponding Crusader or Barr center-rise exhaust manifolds

Fitment Notice

Before ordering, confirm all of the following:

• Existing riser or OEM casting number matches Crusader 98126
• Engine uses a center-rise exhaust manifold configuration
• Engine-box overhead clearance is compatible with the 6.75 in. low-profile height
• Exhaust hose is 4 in. (101.6 mm) I.D.

Do not select by engine displacement alone — Crusader used multiple riser heights and configurations across similar engine families. A taller riser will bolt up but may not fit your engine box; a mismatched height also affects exhaust water injection dynamics.

System Overview

In a wet exhaust system, the center riser sits between the exhaust manifold and the exhaust hose. Cooling water is injected into the exhaust stream at or near the riser to cool the gases before they exit the vessel. A corroded or failed riser can allow water to back-flow into the exhaust manifold and engine cylinders, causing catastrophic engine damage. Annual inspection and timely replacement are the most effective preventive measures.

Service Interval

• Inspect annually as part of routine exhaust system service
• Replace at the first sign of internal corrosion, restricted water passages, cracking, or leakage
• In saltwater applications, many marine service guidelines recommend proactive riser replacement every 3–5 years regardless of external appearance — internal corrosion is not always visible from outside
• Always replace the riser gasket when the riser is removed — never reuse a disturbed gasket

When to Replace the Riser

Replace the exhaust riser when any of the following are found:

• Internal water passages are corroded, restricted, or show visible scale and flaking
• Water leakage appears at the riser-to-manifold joint or along the riser body
• Exhaust cooling-water flow at the transom outlet is reduced
• The casting is cracked, warped, or shows through-corrosion
• Water is found in the engine oil or cylinders (possible riser failure)
• The riser has reached or exceeded the service interval for the operating environment

Installation Notes

• Remove all old gasket material and corrosion scale from the exhaust manifold mating surface — Barr specifically advises removing primer or paint from gasket mating surfaces before assembly
• Inspect the exhaust manifold sealing surface, exhaust elbow, hose, clamps, and cooling-water passages while the system is apart
• Install the supplied gasket — do not reuse the old gasket
• Install hardware per the Crusader service procedure for your engine and torque to specification
• After startup, inspect for exhaust leaks and cooling-water leaks, and verify strong water flow at the exhaust outlet

Technical FAQ

What is the difference between this riser and the taller Barr CR-20-29015 / Sierra 18-1938?
CR-20-98126 is the low-profile (6.75 in.) original-height replacement. CR-20-29015 and Sierra 18-1938 are taller alternatives for installations where additional clearance is available. Both bolt to the same manifold configuration, but height must be confirmed against your engine-box dimensions before substituting a taller riser.

Can I reuse the riser gasket?
No. Always install a fresh gasket when refitting any exhaust riser. A disturbed or compressed gasket is a common source of exhaust leaks after service.

Should I inspect the exhaust elbow at the same time?
Yes. If the riser has corroded, the exhaust elbow and manifold are likely in a similar condition. Inspect the full exhaust assembly whenever the riser is removed.

Cross-Reference Part Numbers

• Barr Marine: CR-20-98126 / CR2098126
• Crusader OEM: 98126 (original application number)
• Taller alternative: Barr CR-20-29015 / Sierra 18-1938 (where clearance allows)

Related Products

• Crusader Exhaust Manifold 302/351 | OEM Water-Cooled | Part R028001 — mating exhaust manifold for Crusader 302/351 applications
• Crusader Exhaust Manifold 6.0L | OEM Water-Cooled | Part R028024 — mating exhaust manifold for Crusader 6.0L applications
• Crusader Exhaust Elbow | OEM Part R029016A — exhaust elbow downstream of the riser
• Crusader / PCM Exhaust Riser 3-1/2" | OEM Elbow Assembly | Part R029011 — alternative Crusader riser assembly for 3-1/2 in. applications
• Crusader Electric Fuel Pump Assembly | OEM 47039 | 5.7L / 7.4L / 8.1L MPI — related Crusader engine component

Parts Desk Insights

Best use case: CR-20-98126 is the right choice when replacing the original low-profile Crusader 98126 riser on a 283–350 CID Crusader V8 with limited engine-box overhead clearance. The low-profile height is the defining fitment factor — if the original riser was 6.75 in. and the engine box is tight, this is the correct replacement. Barr cast-iron construction provides reliable service life in a fresh or lightly brackish environment when the exhaust system is properly maintained and the riser is replaced on schedule rather than run to failure.

Common issues: The most frequent mistake is ordering a taller replacement riser without checking engine-compartment clearance first. Both CR-20-98126 and the taller Barr / Sierra options bolt to the same manifold, so a height mismatch will not be caught until the engine hatch is test-fitted after installation. Always measure the available clearance above the riser location before choosing a height. The second issue is deferred replacement — cast-iron risers corrode from the inside out, and a riser that looks serviceable externally can have severely restricted internal water passages. Annual inspection with a light and pick is the only reliable check; if there is any doubt, replacement is far less expensive than engine repairs from water ingestion.