Oldsmobile 98, 1950-51
Convertible Top and Convertible Top Parts

Oldsmobile 98 1950-51 Key Features:
  • Quality: Made to original specs, 100% fit guarantee.
  • Original Configuration: This is a classic two part convertible top: there is a main top and a rear window section. The two are integrated upon installation. Our tops are made with horseshoe zippered plastic rear window. Tops come with the above rear window molding and their chrome tips. Fabric covered header bow seal is included. Rear fabric is marked for alignment with base line tacking strips.
  • About 'Blank Curtains.' : If you have a glass window assembly for installation then we can offer tops with double thickness fabric "blank curtains" to accept your window.  A typical installation of this tip is pictured below:
  • Original Fabrics: Haartz Pinpoint Vinyl in black, classic white and tan. Haartz Stayfast Canvas in black and tan (both with black or tan backing) and light neutral over tan..
    All seams are doubly electronically welded and sewn for added reinforcement. Convertible top fabrics are mildew & mold resistant, and UV treated for color fastness. Plastic windows are DOT rated heavy 40 gauge thick vinyl
  • About Tacking Strips: Please measure the bow grooves' cross sections and select from our tacking strips for best fit.  
  • Shop with confidence: Made by EZ-On with their 3 year manufacturer warranty and 18 month labor allowance..
  • Hydraulic Components: Hydraulic cylinders, motor pumps and hose sets all available and in stock.

How Two Part Tops are Installed


Convertible Tops and Packages

Convertible Tops and Packages

A.) Haartz Stayfast Canvas Convertible Top
Choice of Zippered Plastic Window OR Blank Curtain

Note: Blank curtain is for those with glass window and framework for installation into the curtain
Rear Section:

As low as:
B.) Haartz Pinpoint Vinyl Convertible Top
Choice of Zippered Plastic Window OR Blank Curtain

Note: Blank curtain is for those with glass window and framework for installation into the curtain
Rear Setion:

As low as:
No need for a frame, this glass is built-in!
Available in two sizes 6" x 21" OR 8" x 25"
Will fold with top without zipping out.
For: 1950-51 Oldsmobile 98 Convertible Top
Oldsmobile 98 convertible tops and parts in this category fit model years: 1950 and 1951

Installation Supplies

Installation Supplies

New Edition!!!
Convertible Top Guys' "How To Remove and Install Classic Two-Part Tops."

This 40-page, extensively illustrated how-to manual walks you through removing and installing any two-part convertible top. The manual applies to almost all American convertibles made before the year 2004, and some foreign cars, too, like Celicas and Saabs. This 8 1/2 x 11 book is designed as both a tutorial for first-time installers and as a step-by-step manual for these convertible tops. Generally, all that is needed and not contained is the "bow height" which is the setting of the rear top frame bow for your convertible. This is available from any top distributor ot can be measured with the old top on the car (as illustrated.)

What skills are required ? (1) The ability to drive staples into bow frame tacking strips (2) The ability to orient fabric sections to the frame and apply with contact cement. (3) A systematic and careful personality ! (There is never any sewing required.)

Note: Very early cars (forties) had wood bows and installers will have to adjust processes for stapling to these bows instead of tacking strips in steel bows as described in manual.


Front and Rear Top Frame Bow Tack Strips
(Tacking strips for most top frames. Some may vary, especially pre-60s cars.)

Dimensions: 5/8" X 3/16" and 1/2" X 1/4" (in 6 foot lengths.)
Note: These usually apply. In certain convertible top frames (especially pre-sixties) the cross sections of the header and rear top bows vary. You can measure the top bow channel cross sections and let us know if yours vary from the usual plastic ones. In that case include your tack strip selection in checkout message.

Standard Black Top Pad Set, includes Quarter Pads,



Top Pads with Quarters,Black or Tan Stayfast Canvas



View Color
Pads: 65" Top Pad Set

Plastic pry tool, great for prying fasteners and seals, pushing seals into retainers, loosening fabric etc
The Arrow T50ACD electric staple gun drives wire staples with force. It will securely drive 1/4" and 3/8" staples into modern convertible top tack strips, eliminating the need for an air gun for convertible top installation. This stapler comes with the a supply of 1/4" and 3/8" staples.

This stapler also has a brad driving capability, so you can use this stapler again and again for a variety of jobs.

The Arrow T50ACD packs a well-balanced powerful, durable design. Comes complete with 10-foot, heavy-duty cord, a supply of T50 series staples, and a one-year manufacturer's warranty.

The Arrow T50ACD stapler has a spiral driven mechanism for consistent powerful driving power. Additional features include safety trigger lock, comfortable non-slip cushion grip, fastener reload, all-steel working parts, and 14-amp motor.

Fiberboard Tack Strip, Measures: 1/4" Thick x 13/16" Wide x 62" Long, Expect 2 x 31" sections.

Fiberboard Tack Strip, Measures: 1/4" Thick x 3/4" Wide x 62" Long, expect 2 x 31" sections.

Fiberboard Tack Strip, Measures: 1/4" Thick x 5/8" Wide. Expect 2 x 31" sections.

Fiberboard Tack Strip: 1/4" Thick x 7/16" Wide. Long, Expect 2 x 31" sections.

Arrow T-50 Stainless Staples, 1/4", 300 Count


Arrow T-50 Stainless-Steel Staples 3/8", 300 Count


Arrow T-50 Stainless-Steel Staples, 3/8", 1000 Count


Arrow T-50 Stainless-Steel Staples, 1/4", 1000 Count
Trimmer Contact Cement: 4-Oz. Brush Top Can. Strong, Waterproof, Flexible Bond for Vinyl-coated and Vinyl-laminated Fabrics.
Trimmer Contact Cement: 8-Oz. Brush Top Can. Strong, Waterproof, Flexible Bond for Vinyl-coated and Vinyl-laminated Fabrics.
Plastic pry tool set, 7-piece kit

Great for prying fasteners and seals, pushing seals into retainers, loosening fabric etc.




"O" Ring Motor Pump Service Kit For Any American Makes

Our O-Ring kit contains the following items:(1) Drive Pin, (1) 1/8" Chrome Ball, (2) 1/4" Chrome Ball, (2) Pump Port O-Ring, (2) Reservoir O-Ring, (1) Reservoir bolt O-Ring, (1) Reservoir plug, (1)Reservoir Plug O-Ring (metal plug only).

1950-52 Oldsmobile Convertible Top Hydraulic Cylinder, Each
1950-52 Oldsmobile Convertible Top Hydraulic Cylinders, Pair
1950-52 Oldsmobile Convertible Top Hydraulic Hose Set
1950-52 Oldsmobile Convertible Top Motor Pump, 6 Volt. This includes the motor, pump, reservoir and a relay to make the wiring work for your car. Our hose ports are on the side of the pump so adapter hoses are included also.
1951-54 GM 6 Volt Convertible Top Hydraulic Motor Pump, Mounts Vertically.
Convertible Hydraulic Cylinder Yoke 1", 1946-52 GM, 1953 CADILLAC
Convertible Top Cylinder,PAIR 1946-1948 Lincoln, all except Continental; 1956-1957 Lincoln;1946-52 Buick,1946-53 Cadillac, 1946-50 Chevrolet,1949-54 Chrysler,1949-54 Dodge,1946-52 Olds,1949-54 Plymouth,1946-50 Pontiac

All convertible top cylinders are not the same. Our top cylinders are made from solid aluminum castings which are stronger than die-cast and our two-piece rod allows us to use a heavier, stronger steel. You won't find a better made convertible top cylinder on the market. All cylinders are made and assembled here in the U.S.A. and come with a 5 year warranty.

Hydraulic Firewall Pump, 6 Volts
For power windows


  • 1946-1954 Cadillac
  • 1953-1954 Buick Skylark
  • 1951-1953 Buick Roadmaster and Super
This part takes approximately 4 weeks to ship
Chrome universal 6 volt toggle switch with wiring. Replaces original switch and wiring to connect directly with 6 Volt Motor Pump with no additional relays required. All wires are tagged for easy installation. Includes crimp connectors to attach wiring to motor and nylon tie straps to hide wiring.
DOES NOT REPLACE ORIGINAL RELAYS. This wire adapter is used to connect new 6 Volt Motor pump using original switch and wiring. No applicable for cars that originally had hydraulic windows. Includes instructions.
Hydraulic System Guide: A well illustrated 10 page, 8 1/2 x 11 guide to the operation, diagnosis, and bleeding of the motor pump and to the motor/pump and cylinder removal and reassembly. Diagnosis includes electrical testing procedures.
Set of 4 New Pointed Pump Grommets
Top Cylinder Mounting Bolt, One.
With Pin and Bushings
1 5/8" Long, 3/8" Diameter.
Top Cylinder Mounting Bolt, One
With Pin and Bushings.
1 1/8" Long, 3/8" in Diameter.
Top Cylinder White Nylon Bushing, Each
Motor pump reservoir plug, black rubber

Cleaning & Protectant

Cleaning & Protectant

A Combination Pack of RAGGTOPP Brand Canvas Cleaner & Protectant.
  • Plus:
  • Raggtopp Convertible Top Plastic Window Cleaner and Protectant Kit.
  • The Natural Horsehair Convertible Top Cleaning Brush
A Combination Pack of RAGGTOPP Brand Canvas Cleaner & Protectant

About RAGGTOPP products
A Combination Pack of the RAGGTOPP Brand Vinyl Cleaner and Protectant.
  • Plus:
  • Raggtopp Convertible Top Plastic Window Cleaner and Protectant Kit.
  • The Natural Horsehair Convertible Top Cleaning Brush
A Combination Pack of the RAGGTOPP Brand Vinyl Cleaner and Protectant Together

About RAGGTOPP products
Raggtopp Convertible Top Plastic Window Cleaner and Protectant Kit


  • Bottle Window Cleaner
  • Bottle Window Protectant
  • Sponge, Applicator Pad
  • Microfiber Towel

About RAGGTOPP products
Natural Horsehair Convertible Top Cleaning Brush

About Natural Horsehair Brush

Top Switch, Relays, Etc.

Top Switch, Relays, Etc.

Top Switch
Activates Raising/Lowering.
Heavy Duty: Rated for 50 amps.
Mount in any under dash hole.

Important Information

Original Factory Color(s): Black, Tan and Light Neutral

Original Patterns:
Our convertible tops for these cars are made from original dealer patterns. They are not "copies of copies." We offer original replacement Stayfast canvas fabrics.

Canvas was the original dealer fabric. Stayfast canvas has an elegant canvas outer layer and a butyl rubber central core. You can read more about the fabrics via the "Help" link at the top of this page.

This is a classic two part top. You can read a thorough summary of the construction and installation of two parts top via the blue link below. Installation requires stapling or tacking and the use of contact cement. There is no sewing required. The full two part top manual, together with careful disassembly will direct the patient do-it-yourselfer through the removal and installation of a new top.

Tech Support:
If you purchase one of our tops and require technical support, it will be available at: techsupport@mtmfg.com. We will try to assist with all questions relating to installation.

Top pads:
Top padding "builds out" the top. Pads can last through two tops but should be replaced if of suspect condition.

Tack Strips:
Tack strips are varathane strips that receive the staples or tacks that hold the top to the front and rear frame bows. Tack strips attached to the bows should last through two tops. Replacement strips are available separately, or packaged within our specials.

About Boots:
Boots are available in GM leather grained vinyl. Boots are listed under "Accessories." Please view the boot swatches via the link shown at each boot listed and jot down your color choice. Order as many of your original boot clips as needed.

Staples and contact cement are available. Please select 'Accessories and Tools' which is in the top line of the menu at the home page.


We now stock hydraulic cylinders, motor-pumps, and hoses for your convertible tops. All are made to OEM specifications. Each can be ordered separately; however, when ordering hydraulic cylinders we recommend replacing both. The chances are that both hydraulic cylinders were manufactured at the same time: if one is on its way out the other may follow. If the top is raised and one hydraulic cylinder is working harder than the other the result over time can lead to a slightly bent convertible top frame. The replacement of both hydraulic cylinders will ensure that the top raises and lowers symmetrically.

Systems for this car take Automatic Transmission Fluid (ATF) and have a 1 year warranty when used with this fluid. Brake fluid should not be used as it voids the warranty. We also offer an installation manual when ordered.

The 12 volt motor-pumps include a mounting bracket with rubber grommets to reduce vibration.

Do-it-yourselfers:   Read a summary of convertible top installation.
Almost all manufacturers use Haartz fabrics. They may specify "heaviest weight" or "original replacement" in ways that seem reassuring. But they do not really tell the whole story. Please bear in mind that two things dominate, by far, the quality issue: (a) the manufacturing quality control in the factory that makes the top and (b) the care and thoroughness of the installation. There is a trade-off in weight: heavier is better for resisting tear through, but lighter is better for flexibility and abrasion from within that may arise from movement. Almost all our tops are a flexible medium density (36 oz.) fabric. Heavier is not better in most cases. Where it is, because of the top design, we will say so and the top will be made of the heavier vinyl.
Warranties outlined here are only applicable for products installed by a professional trim shop or professional upholstery shop. For Convertible Tops, and related products, the manufacturer will void the warranty for any product that is not professionally installed; manufacturer defects are covered by the warranty in such cases. The manufacturer is not responsible for damage due to improper installation.

Parts in this category (Oldsmobile 98) fit cars for years: 1950 and 1951.