What Is the DeatschWerks 9-101-0836 Fuel Pump?

The DeatschWerks 9-101-0836 is a:

• 165 liter-per-hour (LPH)
• In-tank electric fuel pump
• Complete with installation kit

Designed specifically for:

• 1990–1993 Mazda Miata
• 1.6L and early 1.8L applications

This pump is engineered as a direct-fit performance upgrade capable of supporting:

• Bolt-on modifications
• Mild turbo setups
• Improved fuel stability
• Reliable street performance

Especially important on older Miatas where the original fuel pump may already be older than some current owners.

Vehicle Fitment

The DeatschWerks 9-101-0836 fuel pump fits:

• 1990 Mazda Miata
• 1991 Mazda Miata
• 1992 Mazda Miata
• 1993 Mazda Miata

Compatible with:

• 1.6L engines
• Early Miata fuel system configurations

This makes it ideal for:

• NA Miata restorations
• Street builds
• Mild turbo projects
• Weekend canyon cars

Or drift builds held together entirely by zip ties and optimism.

Product Overview:
– Deatschwerks, Llc, Founded In 2004, Is A Company Dedicated To Providing Prime-Performance Fuel System Solutions. Positioned In Oklahoma Town, Oklahoma, Dw Operates Out Of Its Own 36,000 Sq. Ft. Facility That Houses All Of The Company’s Purposes Including Design, End-Manufacturing, Quality Assurance, Sales, Marketing, And Administration. Deatschwerks’ Roots Were Established By Offering Prime Glide Drop-In Fitment Fuel Injectors. In 2009 Dw Expanded Into Fuel Pumps With The Dw300 The First In-Tank Fuel Pump To Outflow The Same old 255 Lph Pump. Since Then, Dw Has Developed Leading edge Fuel System Components Such As The In-Line 250Il And 350Il Pumps, Modular Surge Tanks, Conversion Fuel Rails, Dual-Stage Fuel Filters, And Ethanol Compatible Fuel Pressure Regulators. Nowadays, The Deatschwerks Line-Up Of Fuel System Components Includes Over 500 Skus Covering Sport Compact, Up to date Muscle, And Euro Applications.

Product Info:
– Deatschwerks 165 Lph In-Tank Fuel Pump W/ 89-93 Compatible With Mazda Miata 1.6/1.8L Install Kit

Why Upgrade the Fuel Pump on an NA Miata?

Factory Miata fuel pumps were designed around:

• OEM horsepower levels
• Naturally aspirated operation
• Early-1990s fuel demands

Once modifications increase airflow through:

• Turbocharging
• ECU tuning
• Intake upgrades
• E85 conversion attempts

…the stock fuel system can quickly become insufficient.

A weak fuel pump can cause:

• Lean air/fuel ratios
• Fuel pressure instability
• Misfires
• Poor throttle response
• Engine damage

And turbo Miatas already spend enough time trying to survive questionable life choices.

Manufacturer Part Number:
– Part Number: 6-252-25St

Perfect for Mild Turbo Builds

The 165LPH flow rating makes this pump ideal for:

• Mild forced induction setups
• Street turbo builds
• Naturally aspirated upgrades
• Reliable daily-driven Miatas

Especially combinations targeting:

• Moderate horsepower increases
• Improved fuel stability
• Better long-term reliability

This isn’t a four-digit horsepower drag racing pump.

This is a smart foundational upgrade for enthusiasts building balanced, reliable Miata performance.

Which, honestly, is how Miatas are best enjoyed.

Product Specification:
– Glide Rate: 165Lph
– Series: Dw100

DeatschWerks 165 LPH In-Tank Fuel Pump w/ 89-93 Compatible with Mazda Miata 1.6/1.8L Install Kit

Included Installation Kit Simplifies the Upgrade

One major advantage of the 9-101-0836 package is the included installation kit.

This helps simplify:

• Fuel pump replacement
• Wiring integration
• Fuel system installation

Especially important on older vehicles where:

• Original hardware becomes brittle
• Fuel system components age
• OEM parts become harder to source

Because nothing extends a “quick install” like discovering 30-year-old plastic clips turning into dust.

Part Number: 6-252-25ST
DeatschWerks Fuel Pump Fitment Kits
Glide Rate: 165lph
Factory Sealed – Modern in box

Why Fueling Matters on Turbo Miatas

Turbocharging a Miata dramatically changes fuel system demand.

Once boost enters the equation:

• Injector duty cycle increases
• Fuel pressure stability matters more
• Air/fuel ratios become critical

A proper fuel pump helps maintain:

• Stable pressure
• Consistent injector supply
• Safer combustion under load

Because boost without fuel is basically mechanical betrayal.

Compact Cars Still Need Serious Fueling

One common misconception:
“Small car means small fuel requirements.”

Not once boost gets involved.

Even lightweight Miatas can consume fuel aggressively once:

• Turbocharged
• Tuned
• Running higher RPM

And since Miatas encourage drivers to abuse every corner like qualifying laps, fuel consistency matters more than many owners realize.

Supporting Mods You Should Pair With It

A fuel pump upgrade works best alongside:

• Proper ECU tuning
• Larger injectors (if turbocharged)
• Adjustable fuel pressure regulator
• Updated fuel filter

Especially on:

• Turbo NA Miatas
• Track-driven builds
• Aggressive street cars

Because fuel systems function as complete systems.

One weak component eventually limits everything else.

Usually at full throttle.
Usually when somebody finally starts recording.

Why Enthusiasts Trust DeatschWerks

DeatschWerks has become one of the most respected names in aftermarket fueling thanks to their focus on:

• Fuel injector engineering
• In-tank fuel pumps
• Ethanol compatibility
• Motorsport reliability

Their products are trusted across:

• Street performance
• Drift builds
• Drag racing
• Time attack
• Track day cars

Reliable fueling remains one of the most important foundations of reliable horsepower.

Especially on older enthusiast platforms where OEM components are aging rapidly.

Final Thoughts

The DeatschWerks 9-101-0836 165LPH Fuel Pump is an excellent upgrade for 1990–1993 Mazda Miata owners looking to improve reliability and fuel delivery.

With:

• Direct-fit installation
• Increased fuel flow
• Included install kit
• Proven reliability

…it’s an ideal solution for:

• Street Miatas
• Mild turbo builds
• Restorations
• Reliable performance upgrades

Because the best Miata modifications are the ones that let you drive the car harder without constantly worrying about fuel delivery.

And honestly, the Miata community already has enough chaos without adding lean conditions to the mix.